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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Prove by induction: 2^n >= 11n + 17
- leo255
- · Replies 7 ·
Applying binomial theorem to prove combinatorics identity
- Orange-Juice
- · Replies 8 ·
Determining whether floor((n+1)/2) is 1-to-1 or onto
- leo255
- · Replies 2 ·
How to prove if 3 arbitrary vectors are coplanar
- cptcook
- · Replies 13 ·
Determining the form of the real solution set?
- diredragon
- · Replies 25 ·
Subsets of {1,2,...,10} and digit strings: counting problems
- leo255
- · Replies 4 ·
Finding determinant of nxn matrix with 1s and shifted diagonal 2s
- cdummie
- · Replies 3 ·
Finding complex number with the lowest argument.
- cdummie
- · Replies 10 ·
Solving Arithmetic Progression: Sum and Product of Four Integers
- REVIANNA
- · Replies 4 ·
Trigonometric equations (finding angles)
- Matejxx1
- · Replies 6 ·
What Math Workshop Topic Engages Science Fair Audiences?
- Jakecp
- · Replies 4 ·
Number of objects distributed between four people
- gruba
- · Replies 3 ·
Number of ways to move the king across chess board
- gruba
- · Replies 8 ·
Complex Solution to an Exponential Equation
- cdummie
- · Replies 14 ·
Roll 5 Dice Simultaneously: Probabilities and Conditional Probability
- spacetimedude
- · Replies 11 ·
Determining the area of a triangle
- diredragon
- · Replies 11 ·
Word problem to understand the large size of Avogadro's Number
- E20
- · Replies 2 ·
Solutions of this equation can be found in which range?
- diredragon
- · Replies 7 ·
What is the area of a square drawn inside a triangle?
- diredragon
- · Replies 8 ·
Number of ways to arrange 9 people in 5 spots, given conditions
- leo255
- · Replies 10 ·
Arithmetic and Geometric sequence problem
- stungheld
- · Replies 4 ·
Finding Product of Complex Polynomial Roots
- cdummie
- · Replies 14 ·
If all 3 roots of ##az^3+bz^2+cz+d=0## have negative real part
- cr7einstein
- · Replies 6 ·
One more Linear Transformation
- says
- · Replies 9 ·
Linear Transformations p2 to R2
- says
- · Replies 16 ·
Solving Sets of Matrices for Proving Equivalence Relation
- cdummie
- · Replies 8 ·
Number of partitions for a finite set
- geoffrey159
- · Replies 4 ·
Number of non negative integer solutions to this inequality
- Woolyabyss
- · Replies 6 ·
Solving Simultaneous Inequalities
- EternusVia
- · Replies 7 ·
Is f(x,y)=xy a linear transformation from R2 to R1?
- says
- · Replies 32 ·
How to interpret or read this?
- WIN
- · Replies 6 ·
Solving Equations of Sets in P(E)
- geoffrey159
- · Replies 9 ·
Finding the eigenvectors of a matrix A
- TheSodesa
- · Replies 4 ·
What is the expectation of a random process with unequal probabilities?
- dman12
- · Replies 16 ·
What Is the Exact Value of Sin 345.5 Degrees?
- songoku
- · Replies 9 ·
How to Calculate Stock Prices?
- Embison
- · Replies 11 ·
ILinear Transformations / Isomorphs
- says
- · Replies 16 ·
How Much Will Your Annual £1000 Investment Grow in 25 Years with 5% Interest?
- Pual Black
- · Replies 7 ·
Finding the sum of k² times a binomial distribution term
- gruba
- · Replies 5 ·
Expressing n in Terms of x: Solving for n in the Equation x=n*cos(90-360/n)
- 24forChromium
- · Replies 4 ·
Understanding Time-Invariant and Variant Systems: Examples and Solutions
- steven-ka
- · Replies 3 ·
Discrete Math: Poset Characteristics and Minimum Element Count
- tawi
- · Replies 4 ·
Solving for tension and force in two trig equations
- REVIANNA
- · Replies 8 ·
Proof by combinatorial argument
- ArcanaNoir
- · Replies 4 ·
Sum the even numbers between 1000 and 2000 inclusive
- Pual Black
- · Replies 8 ·
Find real solutions to an equation
- diredragon
- · Replies 17 ·
Find the probability of a prize
- HaLAA
- · Replies 1 ·
Cosine and sine of 2Pi/5 problem
- cdummie
- · Replies 25 ·
Resolving angle of parallelogram in 3D space
- Naton
- · Replies 1 ·
Primitives triangle with smallest side an even number
- Adel Makram
- · Replies 8 ·
What is the Appropriate Cost Function for a Start Up Business?
- Entreprenewb
- · Replies 3 ·
Finding the Intersection of a Sinusoidal Function and a Line
- SimmonSays
- · Replies 4 ·
A coin toss probability problem
- #neutrino
- · Replies 6 ·
When is x^4 + px^2 + q divisible by x^2 + px + q?
- stungheld
- · Replies 22 ·
How do i show if this is associative or not?
- gavin123
- · Replies 11 ·
Linear Independence of trigonometric functions
- Sollicitans
- · Replies 31 ·
Solving parametric systems with Gaussian elimination
- says
- · Replies 17 ·
Describing equivalence classes for relations on real numbers and points
- davon806
- · Replies 6 ·
Coordinate Transformation for Projectile Motion Calculations
- whatisreality
- · Replies 6 ·
Can a Finite Set of Vectors Form a Subspace?
- MienTommy
- · Replies 4 ·
Can Logarithmic Properties Simplify This Equation?
- diredragon
- · Replies 12 ·
Finding sin(x/2)cos(5π/4) given cos(x - 3π/2) = -4/5
- diredragon
- · Replies 18 ·
Why Use Logarithms to Solve Trig Problems?
- mishek
- · Replies 6 ·
Finding vectors OR and OP with given position relationships
- Eysz
- · Replies 4 ·
Is My Solution to This Log Question Correct?
- elctronoob
- · Replies 15 ·
Problem 42 on Gelfand's Algebra (on neighbor fractions)
- vsgarciaaleman
- · Replies 7 ·
Does This Set Form a Basis for R2?
- MienTommy
- · Replies 13 ·
Finding the quadratic equation that suits the solutions
- diredragon
- · Replies 2 ·
Exact Value of Sin 65 Degrees: Trigonometry Identities for Finding the Solution
- songoku
- · Replies 3 ·
Statistics - Finding standard deviation of an angle
- 9988776655
- · Replies 9 ·
Finding two possibilities of depth when volume is given?
- VLP1
- · Replies 7 ·
Spivak's Calculus (4th ed): Chapter 1 Problem *21 Inequality
- Steve Turchin
- · Replies 1 ·
Adding and subtracting polynomials
- Sonny18n
- · Replies 6 ·
Polynomial Division (continued from osnarf's problem)
- jimpap
- · Replies 17 ·
Finding the focus points of a hyperbola
- astrololo
- · Replies 3 ·
Solving a system of equations for four variables
- cmkluza
- · Replies 14 ·
Find inverse for f(x)= x/(1+x)
- jimjames
- · Replies 10 ·
Inverse and composition of functions
- terryds
- · Replies 6 ·
Conic Section Equation Rotation Using Tan2β and x,y Coordinates
- astrololo
- · Replies 27 ·
How Do You Rationalize the Denominator to Solve for a+b?
- terryds
- · Replies 3 ·
Transfer function algebraic manipulation
- gfd43tg
- · Replies 3 ·
Proving orthogonal matrix form with determinant -1
- whatisreality
- · Replies 3 ·
Proving a graph not simple and planar after adding edges
- cmkluza
- · Replies 4 ·
Write i^(2i) in the form a + bi?
- JulienB
- · Replies 13 ·
Prove that no such functions exist
- lordianed
- · Replies 2 ·
Limits of f(x³−x) with given one-sided limits
- Steve Turchin
- · Replies 9 ·
Sales commission on two cars sold for $14,000 each
- Medet
- · Replies 8 ·
Creating a math test thread for instructors to quiz students
- TheMathNoob
- · Replies 2 ·
Probability test preparation: permutations, combinations, conditional probability
- Matejxx1
- · Replies 2 ·
Why is density rounded to two significant figures when mass has four?
- Barclay
- · Replies 4 ·
Utilizing Cayley-Hamilton's Theorem to Solve N x N Determinant Problem
- kockabogyo
- · Replies 4 ·
First rotten egg at k-th pick: why do two methods give different answers?
- davon806
- · Replies 8 ·
Upside down parabola equation -- needed for a quiz
- gracy
- · Replies 17 ·
Finding all integer points in x² + |y| ≤ 2
- whitejac
- · Replies 2 ·
What should be my sequence of operations here? (factoring)
- ProjectTruth
- · Replies 9 ·
Rationalizing denominators and factoring quadratic equations
- Meezus
- · Replies 2 ·
Range of value to satisfy sufficient and necessary condition
- songoku
- · Replies 3 ·
If complex conjugates, are polynomial coefficients real?
- astrololo
- · Replies 3 ·
Why is Percent Change Calculated Like This?
- AAAA
- · Replies 2 ·
How many elements does the set A union B have?
- ZenchiT
- · Replies 29 ·