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

Complex numbers problems | Solving equations using polar form

  • Broken Steel
  • · Replies 3 ·
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3

Find the Proof: Tangent Lines & a Circle w/ Square Root of 3 Radius

  • Miike012
  • · Replies 3 ·
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3
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6

Exponential functions/finance problem

  • supernova1203
  • · Replies 9 ·
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9

Vectors help - Slicing Corner problem

  • man0005
  • · Replies 33 ·
2
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33

Circumcentre of an equilateral triangle

  • Chronos000
  • · Replies 3 ·
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3

Calculating Payback Time for Solar Cell Panels: GCSE kWh Question

  • Mukilab
  • · Replies 19 ·
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19

Domain & Range of f(x)=-√(t(1-t))

  • Procrastinate
  • · Replies 4 ·
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4
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7

Sum of Positive Integers Less Than 150 Not Multiples of 5 or 7

  • Michael_Light
  • · Replies 1 ·
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1

Graphing Trig + algebra functions

  • Miike012
  • · Replies 4 ·
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4

Proof of Trigonometric Identities: Sin(-theta), Cos(-theta), Tan(-theta)

  • Miike012
  • · Replies 2 ·
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2

Solving a Trig Word Problem Involving Pipes

  • Miike012
  • · Replies 2 ·
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2

What are the standard dimensions for paper size 297x210mm?

  • chawki
  • · Replies 12 ·
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12

Transforming a line segment with matrices?

  • mneox
  • · Replies 4 ·
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4

Finding the Radius (word problem)

  • Miike012
  • · Replies 33 ·
2
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33

How to solve (1+cosA)^2 - (1-cosA)^2 - sin^2A = ctgA*sinA*cosA

  • makarov1901
  • · Replies 5 ·
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5

Finding the Max/Min of 1/f(x): A Proof

  • Michael_Light
  • · Replies 11 ·
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11

Solve for y: Explicit Function of y^2 + xy = x^2 | Tips and Examples

  • chwala
  • · Replies 11 ·
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11

Solve Geometric Sequence Word Problem in Gossipopolis

  • ThomasMagnus
  • · Replies 3 ·
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3

What is the reason for the inverse of x^2 not being a function?

  • Willowz
  • · Replies 5 ·
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5

Finding Eigenvectors with a Parameter in Homework Solution?

  • Maybe_Memorie
  • · Replies 1 ·
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1

How to Prove a2+b2 >= 2ab and x2+y2+z2 >= 1/3 c2?

  • Michael_Light
  • · Replies 1 ·
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1

Solving for x: Find the Solution to 2sinx-sin2x=4/∏

  • maff is tuff
  • · Replies 2 ·
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2

An estate agent charges 0.75% fees .

  • tehmatriks
  • · Replies 1 ·
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1

Proving Trigonometric Identities: cos(3x) & (cos(3x)-cos(7x))/sin(7x)+sin(3x)

  • madmike159
  • · Replies 8 ·
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8

Why Does the Solution Include √13 in the Numerator for Trigonometric Ratios?

  • CrossFit415
  • · Replies 1 ·
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1

Problem with differentiation and area of components

  • TW Cantor
  • · Replies 4 ·
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4

How Do You Complete the Square for 2kx^2 - (k+1)x + 4?

  • autodidude
  • · Replies 16 ·
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16

How to Solve Functional Inequality with Multiple Unknowns?

  • Michael_Light
  • · Replies 14 ·
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14

Statistics question about mode

  • omni
  • · Replies 2 ·
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2

Calculating Probabilities for Dorm Room Appliances: TV, Fridge, or Neither?

  • Notoriousb3
  • · Replies 3 ·
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3

How do you construct proofs for set unions?

  • fruitjunkie
  • · Replies 8 ·
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8

How Does Random Reset Impact Expected Distance in a Random Walk?

  • RsMath
  • · Replies 2 ·
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2

Polynomial divided by another polynomial

  • pankaz712
  • · Replies 1 ·
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1

Triginometry: Half Angle Identities

  • StephenAA
  • · Replies 5 ·
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5

How Does a Shift in Mean Affect the Moving Average Calculation?

  • neznam
  • · Replies 4 ·
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4

Grade 11 Math Problem, cant figure out the transformations

  • baller2353
  • · Replies 1 ·
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1

Artist Seeks Math Guru: "Beautiful" Equations on Infinity/Paradox

  • gentleapocaly
  • · Replies 3 ·
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3

What will my new average be if I get 90% on my 7th test?

  • t_n_p
  • · Replies 1 ·
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1
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5

Exponential equation (simple?)

  • 1875
  • · Replies 11 ·
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11

Geometry Problem: Solving w/o Extra Variable?

  • dragonblood
  • · Replies 15 ·
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15

Conditional probablity loaded die problem

  • raptor1770
  • · Replies 7 ·
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7

Beat Your Deadline: Finish in 3 Hours!

  • fruitjunkie
  • · Replies 2 ·
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2

How to solve a system of 3 equations for 3 unknowns

  • christurnadge
  • · Replies 4 ·
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4

Finding s for Parallel Vectors in R3

  • 75 johnson
  • · Replies 3 ·
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3

Recursive using strong induction and structural induction (rosen)

  • DrWillVKN
  • · Replies 2 ·
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2

What are the steps to solve this quartic equation?

  • Michael_Light
  • · Replies 2 ·
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2

Determining Intersections of Quadratic Equations with a Parameter

  • t_n_p
  • · Replies 5 ·
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5

Projectile Motion Trig Problem

  • Phyzwizz
  • · Replies 1 ·
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1

Identifying an Unknown Symbol in a Passage

  • Miike012
  • · Replies 3 ·
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3

Help with Geometry Homework: Recommended Books

  • Miike012
  • · Replies 3 ·
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3

Die is rolled 3 times and 1 more

  • RsMath
  • · Replies 5 ·
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5

This is a problem on mensuration ( VOLUMES AND SURFACE AREAS)

  • agnibho
  • · Replies 3 ·
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3

Mastering Cycle Conjugation: Essential Homework Tips and Strategies

  • hopsonuk
  • · Replies 1 ·
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1

What is the relationship between coefficients and roots in quadratic equations?

  • Michael_Light
  • · Replies 3 ·
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3

Can You Crack This Challenging Math Puzzle?

  • adventuretime
  • · Replies 2 ·
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2

Why couldn't this be factored further?

  • Peter Tran
  • · Replies 3 ·
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3

Problem with angles and differentiation

  • TW Cantor
  • · Replies 11 ·
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11
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6

Solving system of equations for matrix?

  • mneox
  • · Replies 3 ·
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3

Solving Equations with Fractions

  • Mkorr
  • · Replies 2 ·
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2

Range of natural log, some trigonometry

  • Kawakaze
  • · Replies 24 ·
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24

Trigonometric Equation: Solving for Sec x=2 and Reviewing for a Test

  • Phyzwizz
  • · Replies 2 ·
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2

Find b & Inverse Function of g(x) = 1-x2

  • t_n_p
  • · Replies 2 ·
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2

How Do You Calculate the Surface Area of an Enlarged Cylinder?

  • Elizabeth12
  • · Replies 4 ·
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4

Create a Unique Polar Graph with Our Precal Project Help

  • jcoolio12
  • · Replies 8 ·
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8

Linear maps and composites HELP

  • stukbv
  • · Replies 2 ·
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2

Seemingly simple arc length problem I keep getting wrong

  • 1MileCrash
  • · Replies 4 ·
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4

Find the top vertex coordinate of a regular tetrahedron

  • jwxie
  • · Replies 1 ·
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1

Polynomial relationship problem

  • Michael_Light
  • · Replies 1 ·
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1

Solving Projected Particle Problem: Find Value of h

  • aurao2003
  • · Replies 1 ·
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1

Simplifying math expression help

  • 7yler
  • · Replies 3 ·
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3

Calculating Averages: Not so simple after all?

  • Astro
  • · Replies 6 ·
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6

Matrix multiplication/Rotations

  • Jerbearrrrrr
  • · Replies 3 ·
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3

Discrete random variable cumulative distrub. function

  • jsmith613
  • · Replies 1 ·
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1

Is my calculator giving the wrong score or ? (Simple calculation question)

  • Femme_physics
  • · Replies 11 ·
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11

Sketching the Graph: Seeking Help & Solutions

  • aurao2003
  • · Replies 8 ·
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8

Solving Sequences and Series Homework

  • Char. Limit
  • · Replies 1 ·
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1

Finding Trig Identities: How Do I Solve Trig Equations with Given Values?

  • Mike_Winegar
  • · Replies 1 ·
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1

Logarithm Formula Help: Solving for Log3 48 with Given Log4 N and Log12 N

  • Michael_Light
  • · Replies 6 ·
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6

Find the solutions to this inquality by induction

  • emyt
  • · Replies 3 ·
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3

Polynomial question from spivak's calculus

  • osnarf
  • · Replies 8 ·
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8
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1

How Do You Calculate Frequency from Period?

  • andrey21
  • · Replies 24 ·
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24

Geometric Sequence: T1=0.1024, T2=0.256, Middle Term=156.25

  • ThomasMagnus
  • · Replies 7 ·
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7

Geometry Homework: Sum of Circles and Triangles in Figure

  • darkmagic
  • · Replies 2 ·
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2

Complex Number Equations: Solving for Roots and Expressing in Standard Form

  • Michael_Light
  • · Replies 4 ·
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4

Height of Object Launched at 13.8 m/s

  • theredeemer
  • · Replies 3 ·
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3

Cross Product Identity: Solving for (A X B)^2

  • Sirius24
  • · Replies 5 ·
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5

Calculating Levels in a Geometric Series Phone Tree

  • ThomasMagnus
  • · Replies 2 ·
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2

Sin(a+b)sin(a-b) = cos^2b - cos^2a

  • zeion
  • · Replies 10 ·
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10

Double Angle Identity Mystery: Solving 2/(tanx+cotx)=sinx

  • nzashadow
  • · Replies 4 ·
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4

Log Question - Relationship between two points on log function

  • maplesyrup23
  • · Replies 11 ·
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11

Complimentary Angles: Understand Why sin(90-theta) = cos theta

  • Miike012
  • · Replies 1 ·
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1

Proving a 2:1 ratio triangle having a Zero Vector

  • aeromat
  • · Replies 1 ·
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1

Simplify Math Course Work: How to Rationalize Denominators with Conjugates

  • Michael_Light
  • · Replies 6 ·
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6

Solving a Dipstick Problem for Cone and Cylinder Volumes

  • pat666
  • · Replies 43 ·
2
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43

Complex Roots of Equations: Solving z^3 = -8i

  • littlewombat
  • · Replies 3 ·
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3