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

Not sure how to solve this problem without graphing

  • IntegralDerivative
  • · Replies 10 ·
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10

How to simplify cube root expression

  • Daniel McKinley
  • · Replies 5 ·
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5

Approaching vehicles with acceleration

  • JohnnyGui
  • · Replies 5 ·
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5

Graph r = 6 cos() issues with plotting on xy-plane

  • Vital
  • · Replies 9 ·
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9

A problem in Trigonometry (Properties of Triangles) v3

  • Wrichik Basu
  • · Replies 8 ·
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8

Geometric interpretation of complex equation

  • WubbaLubba Dubdub
  • · Replies 5 ·
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5

A problem in Trigonometry (Properties of Triangles) v2

  • Wrichik Basu
  • · Replies 7 ·
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7

A problem in Trigonometry (Properties of Triangles)

  • Wrichik Basu
  • · Replies 3 ·
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3

How many sets of 6 can be made from a set of 12

  • Vector1962
  • · Replies 18 ·
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18

Determining a trigonometric limit

  • Bunny-chan
  • · Replies 2 ·
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2

Linear dependency matrix problem

  • Taylor_1989
  • · Replies 8 ·
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8

Number of pairs of integers satisfying this sum

  • timetraveller123
  • · Replies 15 ·
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15

Compare LHS and RHS: Solve Problem Equation

  • zak100
  • · Replies 4 ·
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4

A clock problem [equation solving]

  • mech-eng
  • · Replies 21 ·
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21

Calculating Remainders: Solution to (1*1!+2*2!+...+12*12!) / 13

  • Young wolf
  • · Replies 1 ·
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1

Confusing Vector Questions: How Do I Solve Them?

  • Taylor_1989
  • · Replies 15 ·
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15

Reflection of triangle over a line

  • zak100
  • · Replies 15 ·
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15

An equation for an algebra word problem

  • mech-eng
  • · Replies 10 ·
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10

Mathmatical model of a pendulum

  • bju
  • · Replies 1 ·
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1

How is the xy curve formed from the rθ curve?

  • Vital
  • · Replies 14 ·
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14

Understanding the size of the angle

  • Vital
  • · Replies 4 ·
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4

Find the height of the tree - understanding the task

  • Vital
  • · Replies 8 ·
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8

Circles and Euler spiral (repost from general math)

  • Mario
  • · Replies 2 ·
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2

Solving for x in the Inequality cos(x) ≤ 5/3

  • Vital
  • · Replies 15 ·
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15

Suppose y is directly proportinal to x

  • mech-eng
  • · Replies 9 ·
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9

Solve the equation, exact solutions in [0, 2π)

  • Vital
  • · Replies 7 ·
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7

Simplify the equation - question about the angle

  • Vital
  • · Replies 4 ·
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4

How to solve for the general solution in a vector linear relationship?

  • Taylor_1989
  • · Replies 8 ·
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8

Rewrite the given function as a sinusoid - why so different

  • Vital
  • · Replies 6 ·
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6

Find the domain of arccsc(e^2x)

  • Vital
  • · Replies 7 ·
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7

Euclidean and non Euclidean geometries problems

  • nmego12345
  • · Replies 4 ·
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4

Rewrite function if moved by a vector and is mirrored

  • JG FRANKO
  • · Replies 1 ·
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1

Supremum and infimum of specific sets

  • Bunny-chan
  • · Replies 61 ·
3
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61

Is it possible that a subspace is not a vector space

  • tze liu
  • · Replies 14 ·
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14

Geometry - Arcs created by Secant Lines

  • marenubium
  • · Replies 3 ·
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3

Computing arctan (inverse tan) function

  • Vital
  • · Replies 10 ·
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10

Show that the function is a sinusoid by rewriting it

  • Vital
  • · Replies 4 ·
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4

Graphs of sin and cos, how to set points for x values

  • Vital
  • · Replies 2 ·
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2

Help describing a region in polar coordinates

  • BillyC
  • · Replies 8 ·
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8

Greatest Common Divisor Theorems definition clarification.

  • knockout_artist
  • · Replies 1 ·
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1

Number theory - fields, multiplication table

  • Rectifier
  • · Replies 32 ·
2
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32

Solve equation using quadratic formula

  • David23454
  • · Replies 15 ·
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15

Greatest common divisor proof

  • knockout_artist
  • · Replies 9 ·
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9

Least distance between two complex numbers on two loci

  • moriheru
  • · Replies 4 ·
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4

Two-value system with square roots

  • Alex126
  • · Replies 5 ·
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5

Find the equation of the plane given point and line (3D)

  • alexandra2727
  • · Replies 2 ·
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2

How Many Ways to Misplace Letters and Form Specific Subsets?

  • doktorwho
  • · Replies 10 ·
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10

3-D vectors forces exerted upon a mast

  • late347
  • · Replies 7 ·
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7

Asymptote of a curve in polar coordinates

  • Faiq
  • · Replies 6 ·
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6

Derivation for number of periods finance formula

  • issacnewton
  • · Replies 8 ·
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8

Converting standard to polar form

  • Arnoldjavs3
  • · Replies 6 ·
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6

Find α+β+αβ: 7 "Solving for α+β+αβ in Arithmetic Progression

  • donaldparida
  • · Replies 24 ·
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24

Finding Linearly Independent Vectors in Subspaces

  • Faiq
  • · Replies 6 ·
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6

Antisimmetric relations question

  • doktorwho
  • · Replies 1 ·
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1

One Variable Statistics Homework Question

  • Ethan_Tab
  • · Replies 2 ·
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2

Prove Induction: u_n < 4 for All n ≥ 1

  • Faiq
  • · Replies 24 ·
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24

When Do Points on Two Different Ferris Wheels Align?

  • LaplacianHarmonic
  • · Replies 20 ·
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20

Calculate circle radius with segment height and perimeter

  • Oppogo
  • · Replies 7 ·
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7

Values of x for which a geometric series converges

  • ellaingeborg
  • · Replies 1 ·
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1

Find roots of the EQN: r^3-r^2+1=0

  • fridakahlo
  • · Replies 16 ·
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16

Parallelogram area (coordinates)

  • Alex126
  • · Replies 8 ·
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8

Prove that lim x -> 0 sin (1/x) doesn't exist

  • Portuga
  • · Replies 7 ·
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7

Minimum of x+1/x (Perimeter Square < Perim equal area rects)

  • CynicusRex
  • · Replies 1 ·
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1

Counter example to: if f*g is inv then f & g are inv

  • eq1
  • · Replies 2 ·
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2

Find the values of b for which the roots are positive

  • Mr Davis 97
  • · Replies 11 ·
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11

Hyperbola and the Line in the Cartesian coords.

  • frostysh
  • · Replies 6 ·
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6

Need help solving this trig equation

  • flgdx
  • · Replies 5 ·
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5

How to find unknown values in a matrix?

  • red1312
  • · Replies 2 ·
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2

Geometric average versus arithmatic average

  • Niles
  • · Replies 2 ·
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2

Solving the Boy Girl Paradox Probability for Random Families

  • Verdict
  • · Replies 9 ·
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9

Rearranging Logarithms: Finding the Solution to log Equations

  • OnlinePhysicsTutor
  • · Replies 10 ·
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10

Visualize this type of Combined Trigonometric Functions

  • pairofstrings
  • · Replies 24 ·
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24

How to solve a geometry problem involving concentric rectangles?

  • Alex126
  • · Replies 8 ·
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8

Maximum area of triangle inside a square

  • issacnewton
  • · Replies 3 ·
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3

Proving inequality related to certain property of function

  • songoku
  • · Replies 5 ·
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5

Deriving the sum of sin and cos formula

  • Mr Davis 97
  • · Replies 2 ·
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2

Simplify Equation: Get Help Now!

  • javii
  • · Replies 9 ·
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9

Algebra problem involving work using specific heat ratio

  • gmaverick2k
  • · Replies 10 ·
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10

Why is it necessary to assume equal variances in two sample t tests?

  • Faiq
  • · Replies 5 ·
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5

Calculating the New Average Age of HR Department

  • matrixone
  • · Replies 1 ·
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1

Interpreting: Consider S & T Sets - Are they Convex?

  • matrixone
  • · Replies 4 ·
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4

We must show that any point of this segment....

  • frostysh
  • · Replies 4 ·
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4

Coordinate geometry - centroid (SL LONEY exercise problem)

  • matrixone
  • · Replies 13 ·
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13
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5

Trigonometric graph transformation

  • ArjenB
  • · Replies 2 ·
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2

Proving the Equality of Two Fractions Using Algebra

  • Kara386
  • · Replies 3 ·
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3
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4

What is the PDF of the sum of n, iid, non central chi-square

  • deema_master
  • · Replies 7 ·
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7

Logic: exclusive-OR statements to form AND/OR statements

  • Back2College
  • · Replies 3 ·
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3

How Many Regions and Convexity with n Straight Lines on a Plane?

  • matrixone
  • · Replies 11 ·
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11

Prove that there is a point equidistant from 4 other points

  • matrixone
  • · Replies 14 ·
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14

Finding the Height of a Circular Roller in a Symmetric Worm Thread

  • Epsilon645
  • · Replies 4 ·
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4

Finding the polar form of a complex number

  • javii
  • · Replies 5 ·
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5

Matrices:- Range and null space

  • Faiq
  • · Replies 2 ·
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2

Write 1729 as the sum of two cubes

  • albertrichardf
  • · Replies 10 ·
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10

Combinatorics: a set of 30 from unlimited objects

  • Lord Anoobis
  • · Replies 14 ·
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14

Tips on finding LCM in radians?

  • Giu1iano
  • · Replies 7 ·
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7

How to Draw an Arc Starting at a Specific Point

  • zak100
  • · Replies 2 ·
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2
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3

Find equation of plane given conditions

  • Mr Davis 97
  • · Replies 2 ·
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2