Precalculus Mathematics Homework Help Forum

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.

Threads

Finding a plane through a line normal to another plane

  • Physicsissuef
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Domain and range of this function?

  • oray
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6

Checking Homework: Did I Solve x Correctly?

  • LLS
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4

How to factorize a polynomial involving cyclic and homogeneous terms?

  • takercena
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3

Cooling Curve Analysis: t vs. T Difference

  • Stacyg
  • · Replies 3 ·
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3

Self studying, similar to a Factorial?

  • rocomath
  • · Replies 6 ·
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6

How can complex numbers be simplified?

  • Physicsissuef
  • · Replies 19 ·
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19
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4

Notes and soundwaves and periodic functions and algebra

  • brandy
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4

Number of Tickets for A to B: 90

  • Amith2006
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2

Chain rule Product rule Derivative

  • cj123
  • · Replies 5 ·
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5

Solving a Parabola: Finding the Width at a Given Height

  • rocomath
  • · Replies 3 ·
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3

Why does a circle have the largest area for a given perimeter?

  • Amith2006
  • · Replies 3 ·
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3

Uses of mean, standard deviation and Z tables

  • sazzlefrazzle
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2

Finding the Phase Angle for a Differential Equation Solution

  • Sparky_
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2
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12

Find a+b in Regular Hexagon Complex Plane Problem

  • ehrenfest
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1

Finding Smallest Integer for Integer Expression with Trigonometric Functions

  • ehrenfest
  • · Replies 2 ·
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2

How is k=3 in the binomial expansion?

  • temaire
  • · Replies 2 ·
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2

Compound interest with principal 65000 at 5.25% for 1.5 years

  • oceanflavored
  • · Replies 1 ·
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1

What is the solution to a differential equation in trigonometric form?

  • Sparky_
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3
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6

How Can the Same Number Result from Different Calculations?

  • brandy
  • · Replies 11 ·
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11

How Do You Calculate the Fourth Root of i Cubed?

  • Theofilius
  • · Replies 2 ·
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2

Softball Team Combinations Problem Solved

  • temaire
  • · Replies 4 ·
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4

What Is the Smallest Normal Subgroup of a Group Containing a Given Subset?

  • norajill
  • · Replies 1 ·
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1

Finding Coterminal Angles in Trigonometry

  • LordofDirT
  • · Replies 6 ·
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6

Converting from Polar to Rectangular

  • tachu101
  • · Replies 2 ·
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2
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5

Determinants and Cramer's Rule

  • rocomath
  • · Replies 1 ·
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1

What is the third condition for finding the symmetric point of a line?

  • Physicsissuef
  • · Replies 2 ·
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2

How does 2/5(√3)^5 equal 18√3/5?

  • alpha01
  • · Replies 4 ·
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4

What is the Cost of Painting a Vessel with Given Dimensions?

  • Amith2006
  • · Replies 2 ·
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2

Center,Radius of a 3 Dimensional circle given 3 points

  • ukmj
  • · Replies 1 ·
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1

Equation of line parallel to plane and intersaction with other line

  • Theofilius
  • · Replies 5 ·
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5

Matrix forms of quadratic equations

  • Dr Zoidburg
  • · Replies 4 ·
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4

Angle between radius vector and x,y,z axis

  • Physicsissuef
  • · Replies 22 ·
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22

What is the symmetric point of the point M(3,4,7) from the plane 2x-y+z+9=0?

  • Physicsissuef
  • · Replies 13 ·
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13

Attempt at proof by contradiction need verification

  • duckandcover
  • · Replies 6 ·
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6

Complex Circle Solutions within Given Constraints

  • Physicsissuef
  • · Replies 28 ·
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28

Complex Plane Points with Re(z)≤0 and |z|=3

  • Physicsissuef
  • · Replies 58 ·
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58

Solving for Parameters B and D to Determine if a Line Lies in the XY-Plane

  • Physicsissuef
  • · Replies 10 ·
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10

Find a if 2x³ - ax² + 2x - 7 has a repeated factor

  • takercena
  • · Replies 8 ·
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8

Finding the Quickest Route During Rush Hour Traffic

  • temaire
  • · Replies 17 ·
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17

Find Coefficient of x^3 in (2x^2-3/x)^3

  • Stacyg
  • · Replies 9 ·
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9

Nonlinear System Solution Strategies

  • oray
  • · Replies 6 ·
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6

Report the test statistic value

  • melissa5789
  • · Replies 3 ·
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3

Solving Combination Problem: 11Cn=330

  • temaire
  • · Replies 1 ·
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1

Discrete probability distribution

  • ineedmunchies
  • · Replies 10 ·
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10

A number raise to it self infinitely

  • bigjoe5263
  • · Replies 14 ·
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14

Proving two trigonometric identities with sec, tan, and cot

  • coolshah
  • · Replies 3 ·
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3
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6

Why does x+5>0 give x<-5 in inequality factoring?

  • DeanBH
  • · Replies 2 ·
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2

Plane through M(2,3,1) and a given line

  • Physicsissuef
  • · Replies 14 ·
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14

Testing H0: μ=0 Against Ha: μ≠0 with 10 Observations

  • melissa5789
  • · Replies 1 ·
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1

How Is X Expressed Using Inverse Matrices in the Equation AX + B = DC^-1?

  • cmcc3119
  • · Replies 7 ·
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Express the surface area of a cube

  • CarbonBased
  • · Replies 1 ·
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1

Parabolic antenna with focus 6 feet above vertex

  • pythagman
  • · Replies 2 ·
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2

Gradient of the graph y = a - k/x

  • DeanBH
  • · Replies 8 ·
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8

Finding upper and lower limits of a graph

  • Aki
  • · Replies 2 ·
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2

Solving Ax=b with Matrices A and C

  • flash
  • · Replies 9 ·
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9

Understanding Fuzzy Logic for Exam Preparation

  • norajill
  • · Replies 1 ·
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1

How can I solve systems of linear equations using the addition method?

  • elizavikki
  • · Replies 1 ·
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1

Solving log base 2 of x(x+3)^2/(4x+2) = 1

  • DeanBH
  • · Replies 1 ·
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1

How do logs work with multiple bases and negative exponents?

  • DeanBH
  • · Replies 6 ·
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6

Prove ~ is an equivalence relation on N²

  • thenoob
  • · Replies 4 ·
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4

What do |z-a|=r and |z-a|=|z-b| represent in the complex plane?

  • Physicsissuef
  • · Replies 19 ·
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19

How Do You Compare and Derive Terms in Sequences S and T?

  • Zoheb Imran
  • · Replies 2 ·
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2

Which formulas hold for all invertible n×n matrices

  • tigger1989
  • · Replies 1 ·
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1

Understanding Logarithmic Function Problems: Solving for x

  • feiser
  • · Replies 2 ·
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2

How do I add two polar form vectors?

  • mattyd-
  • · Replies 1 ·
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1

Relation between nth finite difference and leading coefficient

  • dvmckay23
  • · Replies 1 ·
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1

Proving JUNE is a parallelogram given midpoints and bisecting lines

  • shyguy10918
  • · Replies 4 ·
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4

Master Simplifying Skills: How to Simplify Complex Equations

  • 1calculus1
  • · Replies 4 ·
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4

Understanding Integration: Simplifying Logarithms and Exponents

  • DeanBH
  • · Replies 5 ·
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5

Solve cos(x)sin(x) - 0.25cos(x) = 0 for 0° to 360°

  • roadspill
  • · Replies 6 ·
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6
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5

Challanging Problem It is nessecary to solve quicly

  • vip89
  • · Replies 12 ·
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12

Proving Induction: Sum 1 to n of 1/√i ≥ √n

  • dtl42
  • · Replies 3 ·
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3

Finding the maximum of sin x + cos x on [0,2π]

  • ritwik06
  • · Replies 5 ·
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5

Lim( 1/1.3+1/3.5+ 1/(2n-1)(2n+1))where x tends to infinty?

  • succhi
  • · Replies 4 ·
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4
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2

Binomial expansion of (1+4x)^7

  • DeanBH
  • · Replies 1 ·
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1

Associating a focal length to an angle for a parabola

  • rohanprabhu
  • · Replies 1 ·
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1

Find the inverse of y=x^3 + x +4

  • physstudent1
  • · Replies 5 ·
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5

Extracting X from Y: A, B, C, D Known

  • shlomitk
  • · Replies 2 ·
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2

Inverse of cuberoot(x+sqrt(1+x^2))+cuberoot(x-sqrt(1+x^2))

  • aquitaine
  • · Replies 2 ·
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2

How to work out the drop of a ball once the velocity is known

  • red888
  • · Replies 3 ·
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3

How do i find the roots of this?

  • DeanBH
  • · Replies 6 ·
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6

How Do You Simplify Complex Trigonometric Expressions?

  • stuck
  • · Replies 5 ·
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5

Permutations and Combinations of the word POSSESSES

  • fffff
  • · Replies 2 ·
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2

Converting x² + y² + 2x - 12y + 12 = 0 to standard circle form

  • DeanBH
  • · Replies 8 ·
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8

Finding plane air speed and direction given ground speed and wind

  • bluejeans
  • · Replies 4 ·
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4

Partial Fractions: Solving 4/((s^2) + 4)(s-1)(s+3)

  • sara_87
  • · Replies 2 ·
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2

Matrix relation of sets. symmetric, antisymmetric,reflexive,transitive

  • sapiental
  • · Replies 3 ·
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3

Finding the inverse of y = ∛(x+√(1+x²)) + ∛(x-√(1+x²))

  • aquitaine
  • · Replies 2 ·
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2
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3

How can four tangent values equal one?

  • xphloem
  • · Replies 7 ·
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7

Prove: Swimmer's Time in Flowing River = Time in Still Water

  • riddhish
  • · Replies 3 ·
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3

How to solve sin6x + sin4x = 0

  • Physicsissuef
  • · Replies 7 ·
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7