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.
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Diophantine Equation(Example Run-Through)
- PolyFX
- · Replies 3 ·
How can I expand sin(x + y) + sin(x - y) to get 2sinxcosy?
- bubblygum
- · Replies 3 ·
Using double angles to find value of
- aeromat
- · Replies 7 ·
Multiplying Radicals with FOIL Method
- zelda1850
- · Replies 13 ·
Find f'(π/4) where f(x) = lim[csc(t)−csc(x)]/(t−x)
- Ballox
- · Replies 8 ·
Simplify Radicals: -3\sqrt[6]{3}, 2\sqrt[3]{192}, \sqrt[6]{320} and More!
- zelda1850
- · Replies 4 ·
Trig Functions - When wil object be 9cm below 0?
- TN17
- · Replies 1 ·
Prove any positive integer divides some number with only 0s and 1s
- whiteman
- · Replies 6 ·
Simple trig which I have forgotten
- NOP90
- · Replies 4 ·
Divisibility Proof: Prove n^7 - n Divisible by 7
- tysonk
- · Replies 5 ·
Four buildings with same area: which has largest and smallest perimeter?
- paul.redgate
- · Replies 1 ·
Prove that tan x = csc 2x - cot 2x
- bubblygum
- · Replies 6 ·
Measuring Parabolas of a Suspension Bridge - Alex
- RepoMan
- · Replies 3 ·
How to factor y^1/3 - 1 and y^1/5 - 1 in a limit
- joshiemen
- · Replies 5 ·
Radical probelm can someone please check my answers?
- zelda1850
- · Replies 4 ·
Rearranging a(a+x)=b(b-x) to find x in terms of a and b
- Bugsy23
- · Replies 4 ·
Retrieving exact value using Compound angle
- aeromat
- · Replies 5 ·
Solve for y: Determining the Measure of Angle y
- zeion
- · Replies 1 ·
Descriptive Statistics - Find % of measurement in a certain range
- oceanwalk
- · Replies 2 ·
Is (1-Exp[-i x])^2 equal to Sin^2(x) in particle physics?
- y35dp
- · Replies 4 ·
Calculating the Value of an Infinite Series
- tommyhakinen
- · Replies 2 ·
What is a Lattice Point in Geometry?
- mateomy
- · Replies 2 ·
Finding data for a 2D packing efficiency school project
- AlchemistK
- · Replies 1 ·
Understanding compund angle formulas
- zeion
- · Replies 4 ·
What are the eigenvectors for the given matrix A = [1 0 0; -2 1 3; 1 1 -1]?
- arkturus
- · Replies 4 ·
Geometric multiplicity formula with eigenvalues and rank
- bcilek
- · Replies 1 ·
Function of distance between a point and vector in 3D
- Rosengrip
- · Replies 1 ·
Converting vertex form to standard form for a quadratic
- Mastiff_Lover
- · Replies 15 ·
How to Find the Exact Values of Cosine and Sine of Compound Angles
- zeion
- · Replies 2 ·
Precalculus problems I cannot solve
- mlsbbe
- · Replies 5 ·
Is the Original Figure Considered a Shape in This Puzzle?
- jjs789
- · Replies 10 ·
Binomial theorem - not an easy question
- renvox
- · Replies 7 ·
Range of A for Real Roots of Ay2 - 3y + 4 = 0
- mwhowell
- · Replies 10 ·
Help with precalculus problem
- Thenervemann
- · Replies 1 ·
Finding orbital velocity of a geostationary satellite at 35,900 km altitude
- zeion
- · Replies 13 ·
Limit of (tan√x - sin√x)/(x√(2x)) as x→0+
- Ballox
- · Replies 6 ·
Achiles and a tortoise (not Zeno's Paradox)
- Avathacis
- · Replies 18 ·
Common log question (are you done?)
- Edin_Dzeko
- · Replies 6 ·
Solving Trig Equation: 600cosA = xcos35
- kirbykirbykirby
- · Replies 2 ·
Magnitude of 1/(1 + jwRC) with complex denominator
- kelp
- · Replies 5 ·
How many people in a group would you expect to have the same birthday?
- Procrastinate
- · Replies 1 ·
Finding E(min(X,100)) for geometric distribution with parameter θ
- sneaky666
- · Replies 6 ·
Verify "Sin2(x)Cos2(x) - Cos2(x) = 0" Identity
- caharris
- · Replies 23 ·
Finding circle center and radius by completing the square
- srv96
- · Replies 3 ·
How Do You Make a Complex Denominator Real in a Fractional Expression?
- kelp
- · Replies 3 ·
Card Game Probability Question
- Procrastinate
- · Replies 4 ·
Do 4 Linearly Independent Vectors in R^4 Always Span the Space?
- lkh1986
- · Replies 2 ·
Find the vertex of y = (a-b)(a+b)
- jeetp26
- · Replies 3 ·
Normal Distribution - Discrete or Continuous?
- Procrastinate
- · Replies 1 ·
Shortest distance between plane and point
- physics_197
- · Replies 2 ·
Multinomial Expansion: Combinations of Letters in MISSISSIPPI Taken 5 at a Time
- zorro
- · Replies 3 ·
Sum of numbers greater than 10,000 from digits 0,2,4,6,8
- zorro
- · Replies 11 ·
Permutations with 3 balls of different colours in 4 glass cylinders
- zorro
- · Replies 3 ·
Quadratic Functions Word Problem, It's Tricky
- Nienstien
- · Replies 33 ·
Proving sin(x) + cos(x) = √2sin(x + π/4)
- Barchie
- · Replies 4 ·
A (simple?) question on fractions
- t_n_p
- · Replies 9 ·
Maximizing surface area of rectangular package with square base
- kylepetten
- · Replies 6 ·
Probability of winning four holes in golf
- akhanijow
- · Replies 3 ·
Finding the slope of f(x) = -1/(2x) at x = -2/3 using limits
- morrowcosom
- · Replies 10 ·
Are There Other Strange Division Patterns Besides Cancelling 6's?
- madah12
- · Replies 4 ·
Geometry with circles, triangles and squares
- thereddevils
- · Replies 10 ·
Composition of Functions: Finding g(f-1(x)) with Given Equations
- Darknes51986
- · Replies 3 ·
Liquid Volume of a Frustum of a Cone
- labsean
- · Replies 1 ·
Probability of a Population greater than the one of a sample
- SV7
- · Replies 3 ·
Find polynomial when given a complex root
- jkristia
- · Replies 5 ·
How Do You Solve the Inequality \(\frac{1}{2^x} > \frac{1}{x^2}\)?
- zeion
- · Replies 6 ·
Finding inverse transform formulas for three cumulative distributions
- sneaky666
- · Replies 1 ·
Solving (7/4)^x = 5^(1-x) algebraically
- macbowes
- · Replies 10 ·
Probability question; Conditional probability and poisson distribution
- TaliskerBA
- · Replies 1 ·
How can I solve for x in the inequality 1/x <= 4?
- mackhina
- · Replies 8 ·
Probability Question.Can somone tell me if i am doing right thing
- cloud360
- · Replies 9 ·
What Are the Correct Values of a and b in the Polynomial Problem?
- ghostbuster25
- · Replies 7 ·
Finding x when cos x - i sin 2x and sin x - i cos 2x are conjugates
- zorro
- · Replies 6 ·
Graphing calculator scene project
- gchiffxo
- · Replies 6 ·
Galois theory. field extension, constructible/algebraic numbers
- annawells
- · Replies 13 ·
Ox-words: Rules, Length & Occurrences of a & b
- jammed
- · Replies 1 ·
Prove by induction or any other logical argument
- jammed
- · Replies 26 ·
Binomial Probability: More Than 1 Survival from 10 Chicks
- Procrastinate
- · Replies 6 ·
Finding probability an innocent person is convicted guilty
- cloud360
- · Replies 1 ·
Some number belongs to real such that
- lovemake1
- · Replies 3 ·
Is |f(x)| continuous if f(x) is continuous?
- lovemake1
- · Replies 1 ·
Find solutions to non-linear equation
- mackhina
- · Replies 3 ·
Solving for Values in an Inverse Partitioned Matrix
- BraedenP
- · Replies 2 ·
Solve for Area with Given Vertices Using Vector Calculus
- matt222
- · Replies 7 ·
Proving Implication with Truth Tables: When Do We Use T or F?
- sara_87
- · Replies 4 ·
What Determines the Cross Sectional Flow Area in Air Ducts?
- toofatcoolz
- · Replies 1 ·
Probability of rolling 6-6-6-4-1 with six dice
- j00borg
- · Replies 11 ·
Factoring a higher order polynomial
- mateomy
- · Replies 5 ·
Magnitude of this complex number
- henryc09
- · Replies 1 ·
What is the limit of k over k squared?
- icystrike
- · Replies 8 ·
Is the quotient of periodic functions also periodic?
- Kyyzen
- · Replies 1 ·
Matrix Right-Inverse: Find x_1,x_2 for Ax=b
- TsAmE
- · Replies 2 ·
Proving f(n) = 5 x 3^n - 4 with Mathematical Induction
- BasilBrush
- · Replies 3 ·
Solving for a, p, and q in polynomial and trigonometric equations
- I Like Pi
- · Replies 43 ·
Statistics: Standard Normal Distribution
- shawnz1102
- · Replies 2 ·
How do I formulate and find constants for a bounded exponential equation?
- h00zah
- · Replies 2 ·
Ellipse Equation w/ only vertices and focus
- kitgk
- · Replies 1 ·
What is the Correct Way to Calculate Relative Improvement and Percentage?
- Niles
- · Replies 1 ·
Finding other points on the line given the midpoint
- adillhoff
- · Replies 2 ·
Proving Subgroup Equality in Group Theory
- ranoo
- · Replies 4 ·