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

How Do You Simplify cos^4x Using Trigonometric Identities?

  • david18
  • · Replies 3 ·
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3

Cross Product: Simple Cross Product

  • jhicks
  • · Replies 2 ·
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2

How to convert cylindrical coordinate to cartesian coordinate?

  • kloong
  • · Replies 1 ·
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1

Calculating Angle Between Cube Ribs

  • sky08
  • · Replies 6 ·
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6

Would any maths be needed for this?

  • questions_uk
  • · Replies 2 ·
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2

Converting Inverse Trig Functions to Degrees

  • Liger20
  • · Replies 9 ·
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9

Troubleshooting Trig Identities and Equations

  • zizkio46
  • · Replies 1 ·
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1

KELVIN scale-Can't make sense of the last step of this solution

  • Saladsamurai
  • · Replies 3 ·
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3

Isoceles Triangle: Find Measure of Angle DFG

  • Dragondude
  • · Replies 11 ·
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11

Logarithmic Equation with x on both sides

  • Negima
  • · Replies 3 ·
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3

What is A(2)x in the given system of equations?

  • Gramsci
  • · Replies 7 ·
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7

Solving Trigonomic Inequalites

  • 05holtel
  • · Replies 2 ·
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2
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3

Understanding Polynomials: Explaining Degree and Real Roots

  • nobahar
  • · Replies 8 ·
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8

How to Solve Log Equations with a Variable Base

  • ilygurlie
  • · Replies 5 ·
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5

Also help with conicsmainly ellipses?

  • ilygurlie
  • · Replies 1 ·
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1

Solving Exponential Equations Using Logarithms

  • enkrypt0r
  • · Replies 2 ·
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2

Can this algebraic expression be simplified?

  • MaxManus
  • · Replies 5 ·
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5

Solving Logarithmic Equations for Homework Help

  • enibaraliu
  • · Replies 3 ·
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3

Diagonalize a matrix (help for exam)

  • Gramsci
  • · Replies 2 ·
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2

Question about limit of series

  • JG89
  • · Replies 9 ·
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9

Solve Linear Congruence: Olivia & John's Train Tickets

  • Norway
  • · Replies 4 ·
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4

Relative motion involving vectors(kinematics)

  • Jharr94
  • · Replies 1 ·
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1

The radio of a triangle inside circle

  • H.M. Murdock
  • · Replies 4 ·
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4

How do you prove ex * ey = ex + y using series?

  • lalalalizzay
  • · Replies 2 ·
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2

Converting Cos and Sin to Exponential in Differential Equations

  • jesuslovesu
  • · Replies 1 ·
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1

Prove tan C > b/c in Acute Angled Triangle

  • ritwik06
  • · Replies 16 ·
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16

What is the Remainder When Dividing a Polynomial by x2 - 4x + 3?

  • Kushal
  • · Replies 4 ·
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4

How Do You Calculate the Magnitude and Argument of a Complex Number?

  • Benzoate
  • · Replies 4 ·
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4

Divisor proof with absolute values

  • reb659
  • · Replies 2 ·
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2

Solving 1 - 2sinθ - 3cosθsinθ = 0: Algebra or Easy Way?

  • jaredmt
  • · Replies 3 ·
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3

How to solve a double incognite equation?

  • KRiBaH
  • · Replies 4 ·
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4

Mastering Poker Combinations: How to Calculate Flushes and Full Houses

  • Lukie
  • · Replies 4 ·
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4
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5

Getting Power Function given points.

  • krnhseya
  • · Replies 2 ·
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2

Exponential Problem: Finding Exponents in a Tricky Equation

  • iconwin
  • · Replies 7 ·
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7

Get Expert Help with Invertible Matrices: Tips and Techniques

  • FancyChancey
  • · Replies 1 ·
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1

Calculating Mean Daily Precipitation: Home-made Rain Gauge Results

  • carl
  • · Replies 6 ·
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6

A basic question about complex numbers

  • qazxsw11111
  • · Replies 5 ·
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5

Simple Function (x & y intercepts)

  • synthetic.
  • · Replies 2 ·
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2

Find Limit of 1/2 Series: 1/(n^2 + n)

  • moo5003
  • · Replies 2 ·
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2

Proving an irrational to an irrational is rational

  • hew
  • · Replies 3 ·
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3

Distinct Eigenvalues in matlab

  • samurye
  • · Replies 4 ·
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4

Functions 12U - Basic Polynomial questions

  • joeseppe
  • · Replies 5 ·
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5

How can I solve these harder questions without a tutor?

  • MadmanMurray
  • · Replies 5 ·
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5

Probability problem involving binomial expnasions

  • sinisterstuf
  • · Replies 5 ·
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5

Basis vectors and ortho solution spaces

  • EWW
  • · Replies 3 ·
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3

Graph x^4: Learn How to Plot the Equation

  • Chemistry101
  • · Replies 3 ·
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3

A Trigonometric Identity Probelm

  • cse63146
  • · Replies 3 ·
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3

Proving 3 Non-Coplanar Vectors with Position Vector r

  • kidsmoker
  • · Replies 2 ·
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2

Discrete mathematics: incursion

  • goofyfootsp
  • · Replies 4 ·
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4

Finding coefficients from equation

  • bossler
  • · Replies 4 ·
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4

Irrational Number Approximation Error Explained

  • XJellieBX
  • · Replies 4 ·
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4

Independent or paired? (Statistics)

  • kash-k
  • · Replies 2 ·
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2

Understanding the prove of sequence's sum rule

  • garyljc
  • · Replies 3 ·
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3

Prove that a sequence which is bounded above cannot tend to infinity

  • garyljc
  • · Replies 5 ·
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5

Linear Transformation with Respect to Given Bases

  • forty
  • · Replies 2 ·
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2

Algebra - Find Values of x: (x+6/x)^2-2(x-6/x)-35=0 Homework

  • tornzaer
  • · Replies 4 ·
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4

Solving 5-Pair Sums Equal to 0,2,4,5,7,9,10,12,14,17

  • thrill3rnit3
  • · Replies 21 ·
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21

Solving Integer Questions: Showing x, y, and z are Even

  • garyljc
  • · Replies 4 ·
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4

Inference Rule with Quantifier and implication

  • master cherundo
  • · Replies 1 ·
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1
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1

Prove that a relation is an equivalence relation

  • kenmcfa
  • · Replies 4 ·
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4

What is the solution to this trigonometric limit question?

  • shocker121
  • · Replies 4 ·
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4

Solving for Highest Common Factor (HCF) with 3 Numbers

  • garyljc
  • · Replies 1 ·
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1

Find lowest common denominator of these polynomials

  • Makman
  • · Replies 6 ·
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6

Solve g(x2)=g(x)-6: Functions Problem Homework

  • Kushal
  • · Replies 2 ·
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2

New Forum Member: Induction Problem Solving

  • kky
  • · Replies 1 ·
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1

What Are the Properties of Span and Subspaces in Vector Spaces?

  • kbartlett
  • · Replies 5 ·
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5

Understanding the Limit of (1+1/n)^n as n Goes to Infinity

  • moo5003
  • · Replies 4 ·
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4

Why Does lnZ Not Represent an Isolated Singularity?

  • mritunjay
  • · Replies 6 ·
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6

Finding the Zeroes of a Secant Graph

  • Sabellic
  • · Replies 3 ·
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3

Prove that 4^(n+1) + 5 is divisible by 3

  • XJellieBX
  • · Replies 2 ·
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2

Proving Bisected Opposite Sides of Quadrilaterals

  • lax1113
  • · Replies 2 ·
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2

Solving Radian Equation: Amp=2/3, Period=4╥, Shift=╥/2

  • lucifer_x
  • · Replies 3 ·
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3

TI-83 Problem: Finding the Domain of a Secant Graph

  • Sabellic
  • · Replies 2 ·
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2

Understanding the Question: csc^-1 (cotanΘ)

  • lucifer_x
  • · Replies 3 ·
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3

The sum of three numbers is 4.

  • Pumblechook
  • · Replies 4 ·
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4

Show that 2^(k-1) doesn't divide n(n-1)/2

  • _Andreas
  • · Replies 11 ·
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11

Help with Gauss-Jordan Elimination

  • clickclick
  • · Replies 4 ·
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4

Dot product for Vector equation

  • ricky_fusion
  • · Replies 1 ·
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1

Equilibrium Price & Quantity of Supply & Demand Qs

  • garyljc
  • · Replies 1 ·
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1

Solving 2^k = n/k for k in Terms of n: Tips and Tricks

  • flash
  • · Replies 4 ·
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4

Mathematical Induction Question

  • XJellieBX
  • · Replies 2 ·
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2

Solve Growth Rate Problem: Find Bacteria at Time t

  • Swerting
  • · Replies 4 ·
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4

Solve Simple Word Problem: 100kg w/15% Moisture to 5% Dry Weight Fibers

  • yoleven
  • · Replies 5 ·
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5

Why b^[log (base b) a ] is = a ?

  • garyljc
  • · Replies 4 ·
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4

Exponential and Logarithmic Equations and Modeling Problems

  • jacksonpeeble
  • · Replies 7 ·
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7
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10

Using the Binomial Theorem to Show 3^k C(n,k) = 3^k 1^n-k C(n,k)

  • jenny Downer
  • · Replies 4 ·
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4

Subspace Theorem: Decide if R1 in P2

  • forty
  • · Replies 4 ·
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4

Solving for n in Geometric Progression

  • Mentallic
  • · Replies 8 ·
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8

Is 2 an Eigenvalue of the Matrix Product AB?

  • sayan2009
  • · Replies 11 ·
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11

Derivative of the volume of a cube

  • dunit909
  • · Replies 2 ·
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2

Find Polynomial Equation: 3 Zeros, f(2)=91

  • red_raider
  • · Replies 3 ·
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3

Log Length in L-shaped River Channel

  • GPhab
  • · Replies 2 ·
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2

Solve Inequality Problem: x^3 + 3x^2 - 16x - 48

  • Sheneron
  • · Replies 7 ·
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7

Solving System of Equations with Variables

  • enibaraliu
  • · Replies 1 ·
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1

What is the probability that a customer orders red wine if they order beef?

  • I_LuV_FiZiX
  • · Replies 4 ·
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4

Multiplication of normal distribution

  • garyljc
  • · Replies 2 ·
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2