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

Graph of double absolute values

  • robertmatthew
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3

I hope this helps!Translating Statements into Logical Formulas

  • Miike012
  • · Replies 5 ·
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5

Log problem (or by whatever method)

  • tony24810
  • · Replies 4 ·
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4

Finding a 4th degree polynomial

  • SwimmingGoat
  • · Replies 3 ·
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3

Geometric progression related problem

  • Saitama
  • · Replies 10 ·
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10

How do you derive the two n choose k formulas?

  • zoxee
  • · Replies 8 ·
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8

Proving the Evenness of n^3: Simple Verification for Homework

  • NATURE.M
  • · Replies 9 ·
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9

Is the Statement True or False?: I Gave a Reason Why it is True

  • Miike012
  • · Replies 6 ·
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6

Are There Any Exceptions to the Rule for Domain Exclusions?

  • Qube
  • · Replies 1 ·
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1

Why Is Solving for v in Relativistic Equations Challenging?

  • leroyjenkens
  • · Replies 13 ·
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13

Very easy percentage problem. (See if you can solve it)

  • shadowboy13
  • · Replies 3 ·
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3

Finding Two Vectors from Vector Sum / Difference

  • Cod
  • · Replies 2 ·
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2

All Triangles are Isosceles Proof (Euclidean Geometry)

  • Menaus
  • · Replies 18 ·
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18

Prove the double angle formula through the following method

  • needingtoknow
  • · Replies 3 ·
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3

Proving Inequality for Math Students

  • phospho
  • · Replies 5 ·
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5

How Do You Solve the Equation V=C-(C-S)/(L-N)N for C?

  • Wumbolog
  • · Replies 7 ·
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7

Show these two equations are equivalent (involves sines and cosines)

  • chipotleaway
  • · Replies 3 ·
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3

Discreet Math: Logic Terms Memory Tips

  • Miike012
  • · Replies 1 ·
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1

Algebraic Solution for x + 3^x = 4

  • zoxee
  • · Replies 3 ·
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3

How to Solve Trigonometry Exercises with Unknown Information

  • kiyoshi7
  • · Replies 1 ·
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1

A problem on triangle and it's perpendicular bisectors.

  • agoogler
  • · Replies 6 ·
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6

Finding Common Area of Two Circles

  • z.js
  • · Replies 2 ·
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2

Translate word problem to equation

  • brycenrg
  • · Replies 5 ·
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5

Solution to z^(2/3) when z=1+i

  • smutangama
  • · Replies 3 ·
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3

Solving for a Cubic Function with Given Points

  • brycenrg
  • · Replies 2 ·
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2

Simplifying a trigonometry expression

  • mileena
  • · Replies 13 ·
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13

How do I simplify (sin t + cos t)2 / sin t cos t?

  • mileena
  • · Replies 8 ·
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8

Solving a Simple Algebra Problem: Step-by-Step Guide

  • 462chevelle
  • · Replies 13 ·
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13

Intersection of Lines (Vectors)

  • FeDeX_LaTeX
  • · Replies 3 ·
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3

Find the max and min of trig function without calc or drawing graph

  • needingtoknow
  • · Replies 2 ·
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2
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5

Solving Trig/Algebra Questions: Finding the Missing Factor -√2/2

  • majinkenji
  • · Replies 3 ·
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3

The solution to cos x = 2 or any number > 1

  • smutangama
  • · Replies 3 ·
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3

Is this nonsense? Notation type of quesiton

  • Jbreezy
  • · Replies 6 ·
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6

Is this trigonometric solution correct?

  • mileena
  • · Replies 2 ·
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2

Dividing question, possibly related to factor theorem

  • tony24810
  • · Replies 13 ·
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13

How can I solve the inequality (-3/x) < 3?

  • Qube
  • · Replies 12 ·
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12

Finding other Trig Values from one

  • darshanpatel
  • · Replies 13 ·
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13

Equilateral triangle expressed as function

  • brycenrg
  • · Replies 6 ·
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6

Solving the Math Puzzle: Can't Follow Last Line

  • DunWorry
  • · Replies 2 ·
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2

Eliminate the denominator in this expression

  • chipotleaway
  • · Replies 4 ·
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4

Express the length y of the building as a function of the width x

  • lolilovepie
  • · Replies 9 ·
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9

Find the volume of parallelopiped

  • utkarshakash
  • · Replies 4 ·
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4

Simplify equation with negative exponents

  • Boba-Feet
  • · Replies 5 ·
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5

What Does 'pi/2 <t <pi' Mean in Trig Verbiage?

  • majinkenji
  • · Replies 5 ·
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5

Solve Trig Equation: tanx-1 = cos2x

  • TheRedDevil18
  • · Replies 10 ·
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10

Tricky circular area math problem from the GRE

  • mgier001
  • · Replies 11 ·
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11

Find the angles of the triangle

  • utkarshakash
  • · Replies 17 ·
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17

Evaluate complex value and domain of analytic function

  • yy205001
  • · Replies 2 ·
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2
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1

Distinguishing tetrahedrons with colors

  • V0ODO0CH1LD
  • · Replies 11 ·
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11

Trignometric inequality problem

  • needingtoknow
  • · Replies 5 ·
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5

Inverse trigonometry - Finding solutions

  • Saitama
  • · Replies 10 ·
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10

Infinite series - Inverse trigonometry

  • Saitama
  • · Replies 5 ·
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5

Very simple fraction simplification

  • smulc
  • · Replies 3 ·
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3

Find the relation between x,y and z

  • utkarshakash
  • · Replies 2 ·
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2

How Do You Solve the Equation x/5 - (2x+4)/3 = 1?

  • tomtomtom1
  • · Replies 6 ·
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6
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12

Solving Complex Numbers Homework Statement

  • Mathn00b
  • · Replies 2 ·
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2

Complex problem with additional equation

  • V0ODO0CH1LD
  • · Replies 7 ·
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7

How to Prove an Inequality Using Vectors

  • utkarshakash
  • · Replies 9 ·
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9

Unit Vector Determination for Vector Bisecting Angle

  • utkarshakash
  • · Replies 5 ·
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5

Proving Inequality: Vector Method for Cos2A+Cos2B+Cos2C in Triangle ABC

  • utkarshakash
  • · Replies 1 ·
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1

Finding Angle θ in Parallelogram ABCD

  • utkarshakash
  • · Replies 1 ·
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1

Word problems in Linear equations help

  • kashan123999
  • · Replies 3 ·
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3

Question About Proof: Is the Explanation from Paint Document Complete?

  • Miike012
  • · Replies 7 ·
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7

Finding Convergence, Limits and values

  • smutangama
  • · Replies 6 ·
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6

Finding the Range of k in a Quadratic Equation Problem

  • coderot
  • · Replies 12 ·
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12

Quadratic Equation factorization problem

  • kashan123999
  • · Replies 14 ·
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14

How do you rationalize a demoninator if the denominator is a cube root

  • mileena
  • · Replies 7 ·
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7

Cannot find the height of this triangle given only one leg

  • mileena
  • · Replies 16 ·
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16

Polynomial factorization question.

  • agoogler
  • · Replies 5 ·
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5

Is this Pythagorean Theorem proof legitimate and correct?

  • mohamadh95
  • · Replies 7 ·
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7
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5

What is the complexity of possible chess game combinations?

  • MathJakob
  • · Replies 10 ·
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10

(STATISTICS) 3 randomly selected observations from standard norm dist

  • skyturnred
  • · Replies 3 ·
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3

Confirmation of irrational proof

  • Jbreezy
  • · Replies 8 ·
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8

Piecewise Function Homework: Solve Fourier Coefficient b1

  • DrOnline
  • · Replies 3 ·
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3

Solving the Infinite Series Sum of a Function

  • Miike012
  • · Replies 14 ·
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14
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12

Graphs of Fractional Functions

  • xpeteyzx
  • · Replies 6 ·
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6

Finding Coef. of x2n: An Easy Way?

  • Miike012
  • · Replies 1 ·
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1

A Question related to triangle and centroid .

  • agoogler
  • · Replies 4 ·
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4

Solving a system of equations .

  • agoogler
  • · Replies 5 ·
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5

Finding the Length of QP in a Circle-Triangle Problem

  • utkarshakash
  • · Replies 5 ·
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5

Finding Vertex B in a Triangle Given Coordinates and Orthocentre

  • utkarshakash
  • · Replies 1 ·
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1

Comparing Truth Tables: P→(Q→R) vs. (P→Q)→R

  • Mdhiggenz
  • · Replies 1 ·
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1

Did the Math Department get this wrong?

  • mileena
  • · Replies 5 ·
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5

Why is there a -1 in the equation 5-(x+2)=5x?

  • MartinJH
  • · Replies 12 ·
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12

Variable of an equation is in the denominator

  • mileena
  • · Replies 6 ·
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6

Having trouble with simplifying things

  • smulc
  • · Replies 5 ·
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5

Convergent Series: Am I and The Book Wrong or is Wolfram?

  • Miike012
  • · Replies 1 ·
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1

System of Linear Equations to Resolve Room Dimensions

  • kyle1984
  • · Replies 4 ·
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4

Proving (sinA + sin3A + sin5A)/(cosA + cos3A + cos5A) = tan3A

  • Appleton
  • · Replies 4 ·
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4

Understanding q_n(x) Expansions

  • Jbreezy
  • · Replies 4 ·
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4

Is a<-24 the Correct Solution to the Inequality Problem?

  • MathJakob
  • · Replies 10 ·
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10

Explain Convergence Theorem & Contradicting Statements

  • Miike012
  • · Replies 1 ·
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1

Odd or Even Function: Logarithmic Equation Analysis for Homework

  • Saitama
  • · Replies 7 ·
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7

Geometry - calculating a distance

  • Chetlin
  • · Replies 3 ·
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3

Understanding arg(z1/z2) = arg(z1z2) with Conjugate z2

  • Jbreezy
  • · Replies 16 ·
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16