Precalculus Mathematics Homework Help Forum

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Free pre-calculus mathematics homework help from qualified mentors. Math courses prior to calculus homework. Please use the template when requesting help and show your work.
Solving an Asymmetrical Inequalities Problem: Seeking Light
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29
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1K
Cannot understand what ##(mod ~ \pi)## means in the given formula
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7
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564
Is ##f(x)=2^{x}-1## considered an exponential function?
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12
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917
Trig Identities - Pre-calculus in a Nutshell - Section 4 Question 1
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24
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2K
3x3 matrix with complex numbers
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18
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1K
Inequality question -- Need help getting started...
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7
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562
Is it Possible for x^2 to Exceed 900?
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32
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1K
Calculating the distance from a point to a plane
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1
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629
Why Does Flipping the Denominator in Complex Fractions Give the Wrong Answer?
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9
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557
Solving a nested logarithmic equation
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2
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626
Find all the ways of writing N into x^2-y^2
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8
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701
Solving Plane Equation 3x + 2y -z = 4
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8
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1K
Find the range of values of a + b
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6
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513
Help please with this Trigonometric equation
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4
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533
Find the coordinates of D which lies on the vector BC
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4
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538
Two roads meeting a river at different angles (heights and distances)
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7
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478
Why is this result different? (calculating the sides of a triangle)
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6
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527
Make ##x## the subject of the formula
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15
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610
Find the Area of the shaded region in the given problem
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1
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628
I don't understand this step in turning this negative into a positive
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6
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610
A formula involving the sum of cosines of the angles of a triangle
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6
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804
Algorithm problem involving 3 points and 3 lines in the x,y plane
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7
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806
Simplifying this complicated fraction
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6
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588
Finding the domain of a composite function
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10
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769
Prove that there are infinitely many primes of the form ## 6k+1 ##?
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12
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1K
How can I simplify 1/cuberoot(2)?
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13
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738
Geometry: prove that point M is touched by 4 circles
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4
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778
Justifying Equilateral Triangle AEF in ABCD
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5
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714
Exploring Equation of a Straight Line in 3D Space
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17
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881
Solving a⁻¹ - b⁻¹ = b - a /(ab)
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13
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840
Calculating Left Hand Limit: ##\sqrt 6##
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17
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716
Find an equivalent equation involving trig functions
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4
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502
MHB Find this unknown angle in the triangle
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25
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2K
How to solve this log equation?
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5
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526
Find angle B in the trigonometry problem
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30
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2K
Solve the given trigonometry problem
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7
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808
Solve the given equation that involves fractional indices
2
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39
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2K
Finding the angle between two vectors
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2
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565
Solving an absolute value quadratic inequality
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9
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690
How to find z^n of a complex number
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12
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859
Probability of not getting a prize
2
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36
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2K
What are the implied domain and range of cos(arctan(x))?
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3
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1K
Area of Quadrilateral inside a rectangle
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2
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679
Are both sample spaces the same or do they mean different things?
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5
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576
Geometry problem with arcs in a triangle
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16
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820
Writing a logarithm in a form not involving logarithms
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4
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844
Solve the given vector problem
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1
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565
Understanding Negative Velocity and Displacement on a Velocity-Time Graph
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7
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503
Quadratic inequalities with absolute values
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7
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685
Triangle formed by straight lines
2
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43
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2K
Need Aid On This Problem Set (Combinations of Month Numbers in 10 Years)
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17
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953
Formula for Xo and Yo for graph of quadratic function
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2
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730
Prove that ##AE=2BC## -Deductive Geometry
2
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52
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2K
Is it possible to find the range of this function?
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22
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859
Limit question to be done without using derivatives
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25
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709
Find the values of a and b in the given polynomial
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15
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1K
Show that ##P(X=2)=\dfrac{2}{15}##
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7
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832
Choose a ball at random from a randomly selected box - alternative way
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10
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865
Do We Need Boundaries for Fraction Equations?
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21
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794
Quadratic equation: Which way is correct? pic1 or pic2?
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32
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896
Complex numbers problem |z| - iz = 1-2i
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20
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821
Logarithm Questions - Solve Now!
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3
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789
How do you find the LCM and HCF?
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14
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3K
A problem related to divisibility
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3
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577
Changing the base of a logarithm
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7
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865
How to apply BODMAS correctly in the given problem
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11
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641
Stopping the Bus in 100m - Can it be done?
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4
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959
Laws of Logarithms: Definition & Examples
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8
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758
Calculating Probability Using Bayes' Formula: Solving for P(urn III | silver)
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6
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796
Prove that ## g(x)=f(x)\log {x}-\int_{2}^{x}t^{-1}f(t)dt ##.
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7
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748
How Can I Solve a System of Equations With Complex Numbers?
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19
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1K
Solve for ##x## in the Given Problem
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17
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784
How Can I Solve ##1+i^3+i^5+...+i^{553}+i^{555}\ ?##
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4
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574
InWhat Situations Do We Enounter the Golden Ratio?
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10
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How to prove this using Abel's summation formula?
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9
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893
Estimating the Gradient of a Graph: Student's Attempt
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11
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775
Proof about two disjoint non-empty sets ## S ## and ## T ##
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11
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1K
Divisibility Test: Determine if a Number is Divisible by 6, 8, 4
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7
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798
Proving the result of the following limit
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10
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793
Express the given matrix in the form ##L_1DU_1##
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9
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745
Finding square root of number i.e. ##\sqrt{\dfrac{16}{64}}##
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17
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799
Finding the nth term of a sequence
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12
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2K
Without evaluating the Legendre symbols, prove the following....
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14
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1K
Prove that there are infinitely many primes of the form ## 8k-1 ##
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4
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1K
Prove the identity matrix is unique
2
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57
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2K
Prove relation between the group of integers and a subgroup
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6
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649
Solving Simultaneous Equations: 4x + 5y =12 and -8x + 4y =32
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4
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892
How many birds of each kind did I buy?
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5
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750
How do we get from one step to another in these factorial equations?
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25
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Solve the given trigonometry problem
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10
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989
Determine the set of odd primes ## p ##?
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14
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1K
Binary operation on equivalence classes
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3
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749
Find all possible solutions of x^3 + 2 = 0
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9
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917
Find all the solutions of the congruence
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6
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663
Show that ## p ## divides ## 2^{(p-1)/2}-1 ##
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1
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672
Proof of Inequality: Induction & Derivation Help
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12
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1K
Evaluate the Legendre symbol ## (999|823) ##
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3
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671
Finding the Distance to a Building with Trigonometry
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4
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1K
Finding the Volume of a Slightly non-Rectangular Box
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19
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1K
What does the identity mean here?
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3
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566

Precalculus Homework Help

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