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

What Coordinates Does the Ant Reach in Its Spiral Path?

  • Macleef
  • · Replies 6 ·
Replies
6

Complex Numbers: Eigenvalues and Roots

  • Canadian
  • · Replies 4 ·
Replies
4

What are the key concepts for solving trigonometric functions?

  • sweetcomedygirl
  • · Replies 3 ·
Replies
3

Is a Real 3x3 Matrix with a Square of Identity Diagonalizable?

  • Hello Kitty
  • · Replies 4 ·
Replies
4

Verify Modulo Arithmatic Equation: (47/14)=1 (mod 11)

  • rad0786
  • · Replies 2 ·
Replies
2

Finding the point of intersection of two lines

  • malty
  • · Replies 4 ·
Replies
4

Stuck On An Integral: (9-3x)^3 - Help!

  • ns5032
  • · Replies 4 ·
Replies
4
Replies
4

Stats seating arrangement problem

  • kuahji
  • · Replies 6 ·
Replies
6

Confused about how to solve this problem combining sinusoids

  • guns4monkeys
  • · Replies 6 ·
Replies
6

How Do Double Angle Identities Simplify Trigonometric Equations?

  • Jatt
  • · Replies 9 ·
Replies
9

Probability of invites homework

  • pace
  • · Replies 2 ·
Replies
2

Projection of one vector on another?

  • Joza
  • · Replies 3 ·
Replies
3

Polynomial functions, descartes rule

  • viet_jon
  • · Replies 2 ·
Replies
2

Solving a Quadratic Equation: Finding All Linear Factors

  • DumbKid88
  • · Replies 4 ·
Replies
4

Finding equation of a parabola? Help

  • dillonwerd
  • · Replies 4 ·
Replies
4

Calculating the Building Volume: Time, Labor, & Socio-Political Organization

  • davemoosehead
  • · Replies 2 ·
Replies
2

Finding the Inverse of a Function

  • matadorqk
  • · Replies 6 ·
Replies
6

What is the best method to get a matrix into upper triangular form?

  • Firepanda
  • · Replies 14 ·
Replies
14
Replies
2

Trigonometric Form and the Surprising Result: 1=-1?

  • springo
  • · Replies 4 ·
Replies
4

Trigonometric Identities- simplify sin^4x - cos^4x

  • ku1005
  • · Replies 4 ·
Replies
4

Solving Linear Inequalities on a TI-83 Calculator

  • Corkery
  • · Replies 4 ·
Replies
4

How can I simplify this expression using factoring?

  • jesuslovesu
  • · Replies 2 ·
Replies
2

Solving for Unknowns: Sandwich and Drink Order Equation - Try It Now!

  • benifactorx
  • · Replies 3 ·
Replies
3

Combining & Transforming Trig Functions - Help Needed

  • astro_kat
  • · Replies 1 ·
Replies
1

How Do You Determine the Period of a Combined Sinusoid in Trigonometry?

  • astro_kat
  • · Replies 1 ·
Replies
1

Simplifying: \frac{x^2-6x+4}{(x^2-4)(x-2)}

  • danni7070
  • · Replies 8 ·
Replies
8

How do I solve this algebra equation given in an economics class?

  • 3.141492654
  • · Replies 6 ·
Replies
6

Solving Sin(2x) = Cos(2x): A Complete Guide to Trigonometric Equations

  • qweqwe
  • · Replies 3 ·
Replies
3

Why Was 9/4 Added in the Quadratic Equation Completion?

  • viet_jon
  • · Replies 8 ·
Replies
8

Does This Series Telesope and What is Its Partial Sum Formula?

  • Firepanda
  • · Replies 3 ·
Replies
3

How Do Higher-Degree Polynomials Work in SAT II Math?

  • lLovePhysics
  • · Replies 50 ·
2
Replies
50

Finding Maximum Values: Using Calculus to Solve Quadratic Equations

  • ihopeican
  • · Replies 5 ·
Replies
5

Adding y=A sin(kx+wt) and y=A sin(kx-wt) - Help Appreciated

  • wranglrjeep
  • · Replies 3 ·
Replies
3
Replies
5

Converting degree into variable 'x'

  • L²Cc
  • · Replies 1 ·
Replies
1
Replies
2

How Can We Prove That the Exponential Function is Always Positive?

  • Päällikkö
  • · Replies 15 ·
Replies
15

Trig adding/subtracting and double angle formulas help

  • Ishtar
  • · Replies 4 ·
Replies
4

Proofs for Triangle Congruency: L is the Midpoint of Line JN

  • 169786
  • · Replies 2 ·
Replies
2

Solving tan(theta)=2/5 - 2.62 radians

  • Elitegamer
  • · Replies 3 ·
Replies
3

Friction and Forces - Find Range of Values for P on a 30deg Plane

  • Trail_Builder
  • · Replies 4 ·
Replies
4

Linear Algebra Question, tilting plane angle?

  • Canadian
  • · Replies 4 ·
Replies
4

What is the Number of Possible Committees with Frank Included?

  • pace
  • · Replies 2 ·
Replies
2
Replies
7

How do I factor 16x^4 - x^2y^2 + y^4?

  • moe darklight
  • · Replies 5 ·
Replies
5

How Do You Prove That Perpendicular Lines Have Negative Reciprocal Slopes?

  • STAR3URY
  • · Replies 15 ·
Replies
15

Cramers Rule and Determinants - A more detailed analysis

  • succubus
  • · Replies 2 ·
Replies
2

Equilibrium of Forces: Finding F and Angle X | Homework Help

  • Trail_Builder
  • · Replies 2 ·
Replies
2

Help with Proof: sin4x/(1-cos4x) * (1-cos2x)/cos2x = tan x

  • kathyjoan
  • · Replies 5 ·
Replies
5

Rationalizing cubed expressions

  • Eezekiel
  • · Replies 7 ·
Replies
7
Replies
4

Prove Equality given a condition

  • Gib Z
  • · Replies 7 ·
Replies
7

Radius Of Curvature On A Beam

  • spggodd
  • · Replies 2 ·
Replies
2

With New Problem due Wednsday

  • STAR3URY
  • · Replies 8 ·
Replies
8

Parabolas that intersect, tricky one

  • BlackWyvern
  • · Replies 3 ·
Replies
3

Eliminating the parameter, physics equation.

  • Xorlev
  • · Replies 4 ·
Replies
4

√x-3 + √x = 3 more simple algebra

  • viet_jon
  • · Replies 11 ·
Replies
11

Solve Trigo Prob: Prove \sin{4\alpha} = a

  • ron_jay
  • · Replies 3 ·
Replies
3

Solving Pizza Ordering Dilemmas for Student Council

  • chemzz
  • · Replies 2 ·
Replies
2

Solving for Domain and Asymptotes in Functions f(x) and g(x)

  • Heather W
  • · Replies 4 ·
Replies
4

How can we prove that -1*-1=1?

  • rock.freak667
  • · Replies 2 ·
Replies
2

Embarassed to ask this but 0 = x2 – 15x + 50 ?

  • viet_jon
  • · Replies 5 ·
Replies
5

Maximizing the Sum of Two Numbers: An Algebraic Solution

  • ben328i
  • · Replies 3 ·
Replies
3

Finding two unknowns from varience and mean

  • resresd
  • · Replies 2 ·
Replies
2

How Can Line AF Be Proven Parallel to Base BC in an Isosceles Triangle?

  • Scorpino
  • · Replies 3 ·
Replies
3
Replies
1

Solve x in tan(2x)=8cos(x)^2-cot(x) 0-90°

  • rum2563
  • · Replies 2 ·
Replies
2

Arithmetic Series 2k: Sum of (-1)^n

  • resresd
  • · Replies 4 ·
Replies
4

Accelleration and dispacement of planes and babiess

  • resresd
  • · Replies 3 ·
Replies
3

Simple roots of a quadratic question

  • rock.freak667
  • · Replies 8 ·
Replies
8

Economics MBA profit maximisation toffee

  • jackievdberg
  • · Replies 8 ·
Replies
8

Discrete Mathematics - Permutations/Combinations?

  • aliaze1
  • · Replies 5 ·
Replies
5

Discrete Mathematics - Combinations/Factorials?

  • aliaze1
  • · Replies 1 ·
Replies
1
Replies
2

Trig - Double Angles Questions,

  • Macleef
  • · Replies 3 ·
Replies
3

Angular velocity and bicycle wheel

  • JoeSouthern
  • · Replies 3 ·
Replies
3

Determining the time intervals

  • estado3
  • · Replies 1 ·
Replies
1

Is a Reduced Chi-Squared Value of 0.75 Acceptable for a Good Fit?

  • Moham1287
  • · Replies 1 ·
Replies
1

Deriving Relations from tanA=y/x

  • miccol999
  • · Replies 3 ·
Replies
3

Inverse function of a parabola

  • fatou123
  • · Replies 3 ·
Replies
3

Can You Solve the Square Root Equation with Variables?

  • liskawc
  • · Replies 6 ·
Replies
6

Probabilit y of a valve falling in a time period

  • estado3
  • · Replies 2 ·
Replies
2

Finding arctan(1/sqrt3): Solving the Puzzle

  • fk378
  • · Replies 1 ·
Replies
1

Solve Squares & Numbers Homework: Diff > 5

  • lolerlol
  • · Replies 4 ·
Replies
4
Replies
3

Prove d || d' in Figure with A = A' = 90

  • Behrooz
  • · Replies 1 ·
Replies
1

Standard deviations and probabilities

  • Sir
  • · Replies 1 ·
Replies
1

Solving Sin & Cosin Law Homework | Find Angle Measure

  • HelloMotto
  • · Replies 7 ·
Replies
7

Zero determinant - Can we make a zero column?

  • Himanshu
  • · Replies 5 ·
Replies
5

Determining the Line of Symmetry of a Reciprocal Equation.

  • Samad
  • · Replies 1 ·
Replies
1

Deriving a Formula for cos 3a Using Only Cosine - Step by Step Guide

  • rum2563
  • · Replies 3 ·
Replies
3

Vector prove that diagonals of rhomb split in ratio 1/2.

  • borovecm
  • · Replies 12 ·
Replies
12

How can I combine two equations with the same variables?

  • bejoyjohn
  • · Replies 1 ·
Replies
1

Help with proving a quadrilateral is a parallelogram.

  • Scorpino
  • · Replies 5 ·
Replies
5
Replies
1

Master Proofs with Ease: Solving Tricky Trigonometric Equations

  • yvette25
  • · Replies 1 ·
Replies
1

Prove there is at least 1 friday the 13th between march and october

  • Firepanda
  • · Replies 3 ·
Replies
3

Understanding Linear Equations: Key Elements and Characteristics

  • ineedhelp23
  • · Replies 6 ·
Replies
6