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

Dependent theorem and bayes theorem.

  • iTee
  • · Replies 3 ·
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3

The distinct roots of complex number

  • timeforchg
  • · Replies 13 ·
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13

Solve Trigonometry Proof: A+B+C=π

  • anthonych414
  • · Replies 1 ·
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1

Give a 2x2 matrix with Det(A)=+/-1 that is not orthogonal.

  • pyroknife
  • · Replies 10 ·
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10

Trig, What would this reduce to?

  • TheRedDevil18
  • · Replies 2 ·
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2

Trig Question: cos(2theta) = sin(theta), solve.

  • nukeman
  • · Replies 6 ·
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6

Relationship of Physical Quantities in Functions

  • Youngster
  • · Replies 5 ·
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5

Does Euclid's proof require N = (p1...pn)+1 to be prime?

  • Iccanui
  • · Replies 5 ·
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5

Solving an Inequality with X in a Denominator in Terms of Intervals

  • EcKoh
  • · Replies 8 ·
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8

Solving a Dumb Math Question: Simplifying Equations with Variables

  • Roscoe1989
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2
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2

Find the Reference Angle for 11pi/4

  • zoiberg137
  • · Replies 2 ·
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2

Question: Calculating Areas and Lengths of Circles with Different Radii

  • Taylor_1989
  • · Replies 5 ·
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5

What is the factorization of x^4-2x^3+3x^2-2x+1?

  • cupcakes
  • · Replies 7 ·
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7

Trigonomic algebra to find the inverse of a relative mercator projection

  • WellHydrated
  • · Replies 1 ·
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1

Solve cubic with no rational zeros

  • biochem850
  • · Replies 2 ·
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2

Reviewing Trigonometry for Quadrant II: Sinθ When Cosθ = -1/4

  • nukeman
  • · Replies 2 ·
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2

Decomposing a vector into parallel and perpendicular components

  • dpa
  • · Replies 3 ·
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3

Solving Inequalities with Fraction Denominators

  • inverse
  • · Replies 9 ·
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9

Solving tan 2θ = -1 for θ between -180° and 180°

  • lionely
  • · Replies 7 ·
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7

How Do You Calculate the Area of a Triangle Using the 0.5*b*h Formula?

  • phospho
  • · Replies 4 ·
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4

Simplifying with rational and negative exponents

  • scarne92
  • · Replies 3 ·
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3

Constant term in expansion of (1+x²)/(-3x(1+x)(1+2x))

  • lovelife
  • · Replies 9 ·
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9

How to Find the Domain and Range of √(H^2 + 12756H)?

  • zaddyzad
  • · Replies 4 ·
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4

Finding the domain and range without a calculator

  • Burjam
  • · Replies 2 ·
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2

Why is the domain of √(2x² + 5) all real numbers?

  • nukeman
  • · Replies 9 ·
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9

Proving trigonometric identities

  • Feodalherren
  • · Replies 1 ·
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1

2011 Pascal Contest Discussion

  • Canada_Whiz
  • · Replies 3 ·
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3

Proof that if 32 -|- ((a^2+3)(a^2+7)) if a is even

  • mhz
  • · Replies 5 ·
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5

Trigonometric Equations Solution

  • Peter G.
  • · Replies 3 ·
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3

Finding real and imaginary parts of 6e^(2.5i)

  • emutudeng
  • · Replies 6 ·
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6

Permutations Find the values ex. P(n,2)=90

  • ClosedCastle
  • · Replies 6 ·
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6

Can I prove matrix properties using simple steps?

  • joedozzi
  • · Replies 6 ·
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6

Proving 3^n >= 2n+1 by Induction

  • It_Angel
  • · Replies 3 ·
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3

Distance from (-2,3) to (-1,1)

  • nukeman
  • · Replies 2 ·
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2

Develop a formula for the SA of a cone

  • zaddyzad
  • · Replies 9 ·
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9

Solving Cubic equation to graph

  • MathTroubled
  • · Replies 7 ·
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7

What are the solutions to the inequality?

  • Darth Frodo
  • · Replies 6 ·
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6

What Are the Possible Values of the Larger Number in This Inequality Problem?

  • frozonecom
  • · Replies 1 ·
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1

Finding three normals from a point to a translated parabola

  • utkarshakash
  • · Replies 2 ·
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2

Inequality: Prove that sqrt(x+y)<= sqrt(x) + sqrt(y) for x,y >= 0

  • jeszo
  • · Replies 5 ·
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5

Area of Trapezium Inscribed in a Parabola

  • utkarshakash
  • · Replies 3 ·
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3

Mathematical Induction - Algebra Manipulation

  • Modulus85
  • · Replies 5 ·
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5

Summation inside a summation inside a summation

  • qwerty12345
  • · Replies 3 ·
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3

Find the vertical distance between point, and quation?

  • nukeman
  • · Replies 2 ·
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2

Pairwise/Mutual Independence of Events: Tossing Red/Blue Dice

  • drawar
  • · Replies 3 ·
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3

Help: (x-3) is a factor of x^2-4x+c, find c?

  • nukeman
  • · Replies 11 ·
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11
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4

Locus of point of intersection of tangents

  • utkarshakash
  • · Replies 5 ·
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5

Understanding Trig Notation: What Does Sin(90°-θ) Mean?

  • Feodalherren
  • · Replies 3 ·
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3

Does adding multiples of 2π to arctan give equivalent answers?

  • GreenPrint
  • · Replies 3 ·
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3

Equations describing a shaded region (inequalities)

  • victoration1
  • · Replies 1 ·
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1

How many marbles in a cylinder if

  • LearninDaMath
  • · Replies 12 ·
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12

Looking for a and b to ensure continuous function

  • ful
  • · Replies 9 ·
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9

Finding the distance between centers of two circles

  • nukeman
  • · Replies 2 ·
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2

Really basic expanding question: Forgot how

  • nukeman
  • · Replies 5 ·
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5

How many cubic meters in a cylinder?

  • LearninDaMath
  • · Replies 3 ·
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3

Finding the sides of a trapedzoid using only Angles and perimeter

  • Dramen
  • · Replies 4 ·
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4

Prove That Linear Combination is Coplanar

  • blink-
  • · Replies 1 ·
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1

Converegence Problem for forward and backward propogation

  • aashish.v
  • · Replies 5 ·
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5

Factorization little explanation ?

  • lionely
  • · Replies 2 ·
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2

F of G function question - Square root inside a square root?

  • nukeman
  • · Replies 3 ·
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3

Proving inequality with odd and even terms

  • cupcakes
  • · Replies 1 ·
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1

Right triangle with complex vertices

  • zelmac
  • · Replies 1 ·
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1

Inverse function of a quadratic and a cubic function?

  • supernova1203
  • · Replies 4 ·
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4
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1
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1

Finding constants a and b for a continuous piecewise function

  • SmittenWCalc
  • · Replies 2 ·
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2

Why cant I do this? (Regarding finding domain of function)

  • nukeman
  • · Replies 2 ·
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2

Domain of g(f(x)) with f(x)=√x and g(x)=√(x²+1)

  • mesa
  • · Replies 1 ·
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1

Proof of an inequality involving a series (probably by induction)

  • zodian
  • · Replies 3 ·
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3

Finding the domain of a composite function

  • nukeman
  • · Replies 10 ·
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10

P(t)=6t^4-5t^3+200t=1200 what is t if p is 175000?

  • chiuda
  • · Replies 11 ·
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11

What is the Linear Velocity of a Location on Earth's Equator?

  • darshanpatel
  • · Replies 6 ·
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6

Bernoulli Distribution/ Random Variables

  • AleksIlia94
  • · Replies 11 ·
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11

How do I factor this trinomial

  • priceofcarrot
  • · Replies 19 ·
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19

Simple math problem, exponents

  • digipony
  • · Replies 6 ·
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6

How do I convert a number with a decimal point to binary?

  • xod_s
  • · Replies 3 ·
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3

Summation of a^n for a>1 from n=0 to N

  • amaresh92
  • · Replies 2 ·
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2

Induction: prove x^n + 1/x^n = 2cos(n*theta)

  • ptolema
  • · Replies 8 ·
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8

What is the Meaning of Gradient in Linear Slope?

  • mister_jang
  • · Replies 6 ·
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6

How can I factor a cubic function with a given x-intercept?

  • Calcuconfused
  • · Replies 2 ·
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2
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2

Calculating Gravitational Force with Scientific Notation

  • Moninder
  • · Replies 5 ·
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5

What Values of x Solve the Equation sin(kx) = 0?

  • mrcheeses
  • · Replies 1 ·
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1

Distance/Rate/Time word problem

  • acen_gr
  • · Replies 3 ·
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3

Determinants and inverses of matrices

  • thornluke
  • · Replies 8 ·
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8

Prime Number Arithmetic Progression

  • FeDeX_LaTeX
  • · Replies 5 ·
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5

Square root within a square root

  • Ross MC
  • · Replies 5 ·
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5

What is the domain of f(x)=x^(2/3)?

  • MSchott
  • · Replies 4 ·
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4

What is the Average Velocity of a Stone Tossed in the Air?

  • vysero
  • · Replies 3 ·
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3

Use mathematical induction to prove the following statements are true

  • Daaniyaal
  • · Replies 2 ·
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2

Salary after 10 years with 7% annual increase

  • calcunoob
  • · Replies 2 ·
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2

Finding the radius of a circular track given arc length and angle

  • DOA_Kasumi22
  • · Replies 1 ·
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1

How to determine # of solutions to sqroot of x+5=x?

  • gurpalc
  • · Replies 1 ·
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1

Induction: 1+2+2^2+2^3+ +2^n-1=2^n-1

  • Daaniyaal
  • · Replies 3 ·
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3

An inequality with absolute values

  • theself
  • · Replies 7 ·
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7

Factoring with factorial exponents.

  • ponyberry
  • · Replies 3 ·
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3

Finding cot(arcsin(x)) in terms of x

  • vysero
  • · Replies 3 ·
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3