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

Proving this trignometric identity

  • hms.tech
  • · Replies 4 ·
Replies
4

Proving the Centroid of ABC Triangle

  • Andrax
  • · Replies 7 ·
Replies
7
Replies
9

Auto Insurance monthly interest rate. Having trouble

  • YODA0311
  • · Replies 2 ·
Replies
2

Another arithmetic progression problem

  • Government$
  • · Replies 4 ·
Replies
4

Arithmetic progression problem

  • Government$
  • · Replies 9 ·
Replies
9

How can I solve a system equation with known solution?

  • naoufelabs
  • · Replies 2 ·
Replies
2

How Many Ways Can You Solve This Permutation Problem?

  • bllnsr
  • · Replies 9 ·
Replies
9

What is the inverse of this logarithm equation?

  • supernova1203
  • · Replies 6 ·
Replies
6

Evaluate lim e^x when x approaches zero from negative

  • Outrageous
  • · Replies 6 ·
Replies
6

Question about wording of problem geometry

  • Taylor_1989
  • · Replies 1 ·
Replies
1

Counting Pairs with Common Elements in a Set

  • physics kiddy
  • · Replies 1 ·
Replies
1

Sum of All Possible Values for Sn to be a Perfect Square?

  • physics kiddy
  • · Replies 14 ·
Replies
14

Simplifying an algebra question

  • evosy1978
  • · Replies 4 ·
Replies
4

Is My Attempt at Solving the Binomial Expansion Homework Correct?

  • bllnsr
  • · Replies 11 ·
Replies
11

General solution of a system of equations and partial fractions

  • phy$x
  • · Replies 5 ·
Replies
5

Is My Approach to Solving This Permutation Problem Correct?

  • bllnsr
  • · Replies 16 ·
Replies
16

Is (a+b)^2 Always Equal to a^2+2ab+b^2?

  • Wardlaw
  • · Replies 6 ·
Replies
6

How Can Two Confocal Conics Pass Through a Single Point?

  • utkarshakash
  • · Replies 11 ·
Replies
11

Logarithm: Compound interest problem

  • HerroFish
  • · Replies 2 ·
Replies
2

Reviewing my logarithms, solving this inequality

  • Astrum
  • · Replies 11 ·
Replies
11

Understanding Algebraic Unknowns in Physics Problems

  • ZedCar
  • · Replies 5 ·
Replies
5

How many terms are needed in the series 11+16+21+26 + to exceed 450

  • Daaniyaal
  • · Replies 3 ·
Replies
3

Finding primes fitting a certain algebraic relation.

  • chingel
  • · Replies 13 ·
Replies
13

Questions regarding permutations .

  • sankalpmittal
  • · Replies 8 ·
Replies
8

Inverse 2D rotation with negative parameters

  • atrus_ovis
  • · Replies 2 ·
Replies
2

Finding the Magnitude of Cross Product Vector Question

  • fehilz
  • · Replies 3 ·
Replies
3

How Many Six-Digit Numbers Have Three Even and Three Odd Digits?

  • Vineeth T
  • · Replies 4 ·
Replies
4

Proving the Inequality in Newton's Square Root Method

  • Bonaparte
  • · Replies 7 ·
Replies
7

How Can You Solve the Problem of P1Q1 + P2Q2 + ... in Binomial Expansions?

  • Vineeth T
  • · Replies 3 ·
Replies
3

Probability question considering 6 dice throws

  • Uniquebum
  • · Replies 4 ·
Replies
4

Finding Points of Tangency for the Unit Circle

  • Cascadian
  • · Replies 8 ·
Replies
8

Four complex points lie on a circle proof

  • QuantumP7
  • · Replies 4 ·
Replies
4
Replies
7

Prove that cos(2∏/7), cos(4∏/7), cos(6∏/7) are the roots of this equation.

  • Michael_Light
  • · Replies 2 ·
Replies
2

A simple math equation solving for unknown

  • eXmag
  • · Replies 10 ·
Replies
10
Replies
10

Can You Simplify Limits Using Big O Notation?

  • catapax
  • · Replies 1 ·
Replies
1

Probability of Increasing Order in Multiple Dice Rolls

  • Mandelbroth
  • · Replies 2 ·
Replies
2

Maxima and minima word problem

  • jiwhun1989
  • · Replies 8 ·
Replies
8

Probability all balls are white.

  • Swetasuria
  • · Replies 3 ·
Replies
3

Is this the correct graph for x=-1+5t when t = −2, −1, 0, 1 and 2?

  • f22archrer
  • · Replies 12 ·
Replies
12

Coordinate Geometry: PQRS Parallelogram

  • Taylor_1989
  • · Replies 1 ·
Replies
1

Why Do We Add 1 When Counting Numbers Between Two Integers?

  • Andrax
  • · Replies 1 ·
Replies
1

Solving Complex Equations: Step-by-Step Guide for Large Numbers"

  • wellcoughed
  • · Replies 5 ·
Replies
5

Combinatorics, permutations of letters

  • Hannisch
  • · Replies 3 ·
Replies
3

Determine the term containing (Binomial Theorom)

  • zaddyzad
  • · Replies 21 ·
Replies
21

Help with Trig Identity Simplification

  • je1ani
  • · Replies 3 ·
Replies
3

Solving an Inequality: -9 < 1/x

  • brownman
  • · Replies 2 ·
Replies
2

125/24 can never be less than 31/24.

  • chikis
  • · Replies 3 ·
Replies
3

Trig/geometry help (triangles/finding sides)

  • PhizKid
  • · Replies 2 ·
Replies
2

Data Management - Probability Game

  • billy1024
  • · Replies 3 ·
Replies
3

Algebra- find solution using two variables

  • puma072806
  • · Replies 5 ·
Replies
5
Replies
1

Quick vector plane theory question.

  • e_brock123
  • · Replies 2 ·
Replies
2

Are the angles of ∏/2 and 3∏/2 coterminal?

  • EricPowell
  • · Replies 4 ·
Replies
4

Normal to a fixed concentric ellipse

  • utkarshakash
  • · Replies 7 ·
Replies
7

Solve Card Probability: King of Hearts in Deck

  • jakegoodman
  • · Replies 32 ·
2
Replies
32

Logarithms - Show that the expression is true

  • JJBladester
  • · Replies 8 ·
Replies
8

Arithmetic Progression - show that question

  • trollcast
  • · Replies 5 ·
Replies
5

Undetermined system with no solutions?

  • Questions999
  • · Replies 4 ·
Replies
4

Spheres and Planes Intersection

  • sijad
  • · Replies 7 ·
Replies
7

Find the eccentricity of this ellipse

  • utkarshakash
  • · Replies 4 ·
Replies
4

What is the Time to Fill a Tank with Pipe B Only?

  • puma072806
  • · Replies 12 ·
Replies
12

Question about settings equations equal to eachother

  • 939
  • · Replies 2 ·
Replies
2

Is the Square Root of Pi Irrational?

  • phospho
  • · Replies 2 ·
Replies
2

Find the Total Number of Arrangements for Six Mobsters in Line

  • Polymath89
  • · Replies 2 ·
Replies
2

Posets and minimal elements - Looking for an inductive proof

  • Kolmin
  • · Replies 20 ·
Replies
20

What is the Cubic Function that Passes Through Given Points?

  • Kstan333
  • · Replies 6 ·
Replies
6

Proof using greatest common divisor.

  • bonfire09
  • · Replies 6 ·
Replies
6

Proving m<f(x)<M for f(x)=\frac{x}{x^2 +x+1}

  • Andrax
  • · Replies 3 ·
Replies
3

Maxwell Equations and Fourier Expansions

  • JTPF
  • · Replies 2 ·
Replies
2

What am I doing wrong in this exponential equation?

  • wahaj
  • · Replies 4 ·
Replies
4

Distance-function and velocity-function problem

  • Matthewkind
  • · Replies 1 ·
Replies
1

Prove that a variable chord of ellipse

  • utkarshakash
  • · Replies 8 ·
Replies
8

Question about a cancellation law

  • icesalmon
  • · Replies 6 ·
Replies
6

Matrix algebra - Gauss 0=0, determinant = 0

  • DrOnline
  • · Replies 8 ·
Replies
8

What is the Poisson Approximation for Small Probability Trials?

  • CAF123
  • · Replies 15 ·
Replies
15

Determine the equation when given a graph

  • Feodalherren
  • · Replies 11 ·
Replies
11

A question regarding inverse functions

  • christian0710
  • · Replies 15 ·
Replies
15

Transitive Relation over Set - Feedbacks on proofwriting skills

  • Kolmin
  • · Replies 3 ·
Replies
3

How to Simplify Partial Fraction Decomposition with Complex Roots?

  • matematikuvol
  • · Replies 1 ·
Replies
1

What is the value of a+b+c+d+e?

  • Ryuzaki
  • · Replies 2 ·
Replies
2

Finding marginal density functions

  • CAF123
  • · Replies 14 ·
Replies
14

Solve 4c=1+4r^2: HSC Advanced Maths Exam Ques.

  • hscguy
  • · Replies 2 ·
Replies
2

Find the Inverse of a Function: f-1(f(x)) = +/-√(x+0.25)-1.5

  • kris2fer
  • · Replies 2 ·
Replies
2

Determine the equation of the conic section

  • Feodalherren
  • · Replies 3 ·
Replies
3

Solving 0=1/2(e^(2x))-(e+1)(e^x)+ex

  • Bonaparte
  • · Replies 7 ·
Replies
7

Is the Relation R Complete Given Asymmetry in P?

  • Kolmin
  • · Replies 8 ·
Replies
8

Solveing differential equations system using diagonal matrix

  • jey1234
  • · Replies 1 ·
Replies
1

Matrix to the Power of T: Solving for AT in A=[2 4 6 8]

  • Daaniyaal
  • · Replies 5 ·
Replies
5

Substitution Method for Solving Systems of Equations

  • rcmango
  • · Replies 5 ·
Replies
5

Trig Identity Solutions: Solving csc^2(x/2) = 2secx | x Solutions

  • Stanc
  • · Replies 18 ·
Replies
18

How Do You Find the Slope-Intercept Form with Given Intercepts?

  • rcmango
  • · Replies 5 ·
Replies
5

Adding variables with same exponents

  • rcmango
  • · Replies 2 ·
Replies
2

Solving this equality. Then simple plot.

  • rcmango
  • · Replies 5 ·
Replies
5

Finding dimensions of a rectangle.

  • rcmango
  • · Replies 4 ·
Replies
4

How can I solve sin(t^2)-(t^2)=0 without a numerical solver?

  • wutang42
  • · Replies 6 ·
Replies
6

Binomial expansion question that I cannot fathom

  • Originaltitle
  • · Replies 6 ·
Replies
6

Triangle Area Calculation: Base 2 & 3/4, Height 4/9 | 11/18 Solution

  • rcmango
  • · Replies 3 ·
Replies
3