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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Finding the inverse of a 5×5 matrix
- Geminiben
- · Replies 2 ·
Proving sin^4x + cos^4x = 1 - 2sin^2xcos^2x
- snooooooooooz
- · Replies 24 ·
Factorizing 4x^2 - 12x - 14
- Learnphysics
- · Replies 10 ·
Solve Perpendicular Lines: A(1,2), B(4,0), C(k,2), D(1,-3)
- bacon
- · Replies 4 ·
Proving binomial expansions for commutative matrices
- Theofilius
- · Replies 9 ·
Finding Perpendicular Tangent Point on Parabola
- soul5
- · Replies 5 ·
Problem Verifing Identities in Trig
- Rada3b
- · Replies 11 ·
Expanding (3x-5)^2+(x-4)^2-10(x+4)(x-1)
- Stacyg
- · Replies 3 ·
Simplifying (2/6 -root3)^2 - (2/6+root3)^2
- binomialgurl
- · Replies 4 ·
How to factor this monster into two quadratics?
- motornoob101
- · Replies 4 ·
V is vector space of all antisimetric 3x3 matrices
- Theofilius
- · Replies 5 ·
Can Streamlining Algebraic Manipulations Accelerate Factoring Techniques?
- OrbitalPower
- · Replies 4 ·
Extremely stupid question but i want to be 100% sure
- groom03
- · Replies 7 ·
Algebraic solution of Trig equation.
- synthetic.
- · Replies 2 ·
Bump in the Right Direction: Simplifying b^2-a^2
- montoyas7940
- · Replies 4 ·
Find polynoms, with as least as power possible
- Theofilius
- · Replies 136 ·
Simplify fully: log a + log b – log b^2
- Paulo2014
- · Replies 3 ·
How can you de-rationalise the denominator of 3sqrt2/2?
- Ry122
- · Replies 7 ·
Perpendicular distance from origin to a line in 3D
- PuzzledMe
- · Replies 14 ·
Solving 5√x = 40/x
- thomas49th
- · Replies 17 ·
Area Common to 2 Circles: Radians Question
- david18
- · Replies 2 ·
Why Is \sqrt[4]{(-4)^2} Not Equal to (-4)^\frac{1}{2}?
- bacon
- · Replies 5 ·
Parabolas and Other confusing equations
- DarlingAly
- · Replies 12 ·
Center and Radius of Circles with Given Equations
- cheab14
- · Replies 4 ·
How Can You Calculate the Speed of an Object Dropped from a Building?
- hds29ka
- · Replies 3 ·
Is the Graph of y=(x-3)^3 Symmetric About the Origin?
- bacon
- · Replies 1 ·
Solving Pool Dimensions - Length = 30 ft, Width = 60 ft
- bacon
- · Replies 5 ·
Can You Find the Roots of a Complex Equation?
- Physicsissuef
- · Replies 2 ·
Solve Trig Equation 20sinx - 4cosx - 13 = 0
- maphco
- · Replies 4 ·
Direction vector of refracted ray using Snell's law
- chyo
- · Replies 3 ·
How to solve three simultaneous equations in three unknowns
- JFonseka
- · Replies 3 ·
Solving 2 Questions on Continuity in R^2
- Ka Yan
- · Replies 1 ·
Compound Functions (Algebra/Fractions)
- synthetic.
- · Replies 3 ·
Existence of Inverse Functions
- AussieDave
- · Replies 12 ·
Solving Projectile Motion: Find x and y with Trig. Identities
- Cursed
- · Replies 3 ·
Proving A is Not Finite: B is Not Finite
- Ka Yan
- · Replies 6 ·
Solving (p - 10)/-5 = (p - 1)/4
- alpha01
- · Replies 20 ·
Verifying Trigonometric Identities
- fogmomjazz
- · Replies 5 ·
Probability with independent outcomes
- pace
- · Replies 5 ·
Finding a Cubic Polynomial with Remainders
- mangren
- · Replies 7 ·
Solving for the Coefficients of a Polynomial with Given Roots?
- Theofilius
- · Replies 20 ·
Finding the remainder when dividing a polynomial by (x-a)(x-b)
- Physicsissuef
- · Replies 40 ·
How Many Sets of Four Consecutive Integers Have a Product Under 100,000?
- rocomath
- · Replies 3 ·
Solving Quadratic Equations w/ Unequal, Real, Rational Roots
- mrroboto
- · Replies 4 ·
How Do You Solve a Complex Number Problem Involving a Parallelogram?
- PuzzledMe
- · Replies 2 ·
Root of the symmetric equation
- Physicsissuef
- · Replies 26 ·
Algebta (factoring polynomials)
- OrbitalPower
- · Replies 1 ·
How to Simplify a Complex Fraction in Algebra?
- kwikness
- · Replies 7 ·
Are f and g Injective and Surjective if g\circf is Injective or Surjective?
- Ka Yan
- · Replies 1 ·
Can (y+3)^3 + 8 Be Fully Factorized?
- alpha01
- · Replies 20 ·
For which natural numbers n is (n² - n + 2)/(n + 1) also a natural number?
- Theofilius
- · Replies 35 ·
Ray Tracing Box Intersection: (3,8) to (6,-1), (-2,3), and i-5j
- haddow64
- · Replies 1 ·
What does Delta mean in this case
- rad0786
- · Replies 1 ·
Linear Transformation Part 2: Finding the Image of a Linear Transformation
- aznkid310
- · Replies 5 ·
Probability of Getting Red at Least Once in Two Spins of a Wheel with 8 Colors
- pace
- · Replies 50 ·
Summing cosines of different amplitude
- radiogaga35
- · Replies 1 ·
Does lim[f(x+h)-f(x-h)]=0 imply f is continuous?
- Ka Yan
- · Replies 4 ·
Finding angle X where sin X = X and cos X = 1 and X < 1 rad
- JecaSpirro
- · Replies 4 ·
KerF and ImF of linear copying
- Physicsissuef
- · Replies 29 ·
Proving injection,surjection,bijection
- Physicsissuef
- · Replies 28 ·
Finding point R on line where QR is perpendicular using dot product
- Dr Zoidburg
- · Replies 4 ·
Converting f(x) = -4x² + 4x to vertex form
- rocomath
- · Replies 1 ·
Sigma Notation Question/Trig Identity
- Lamoid
- · Replies 4 ·
Solve Quadratic Equation for Single or Multiple Intersections with the x-axis
- undefinable
- · Replies 9 ·
Quadratic Equations with 2 plots
- Larrytsai
- · Replies 4 ·
Identies: Sum And Difference, Double Angle hurry
- emohunter7
- · Replies 21 ·
Find the linear transformation
- Physicsissuef
- · Replies 46 ·
How many different hands can be dealt in this variant of Poker?
- Firepanda
- · Replies 2 ·
Permutations matches in basketball league
- master cherundo
- · Replies 1 ·
How Do You Solve Inequalities Involving the Ceiling Function?
- jack1234
- · Replies 1 ·
How to Calculate the Molar Mass of CaCO3
- rww63
- · Replies 1 ·
Orthogonal Diagonalization of a Symmetric Matrix
- aznkid310
- · Replies 3 ·
Two Sequencing Questions for Converging Formulas
- Ka Yan
- · Replies 9 ·
Finding complex zeros given sum and product constraints
- Firepanda
- · Replies 3 ·
Factoring (x-1)³ - (x+2)³ and other polynomial expressions
- Andy111
- · Replies 11 ·
OWhat is the product of these permutations?
- Firepanda
- · Replies 7 ·
Finding students who play all three sports with set overlap
- Firepanda
- · Replies 9 ·
Instantaneous rate of change of a sphere
- ivysmerlin
- · Replies 2 ·
Upper and lower limits of S_n from its recursive definition
- Ka Yan
- · Replies 3 ·
Factorizing x^5y^2 + x^2y^5
- alpha01
- · Replies 2 ·
Solving polynomial equations without a graphing calculator
- Andy111
- · Replies 11 ·
Inverting parabolic and stereographic coordinates
- Epimetheus
- · Replies 1 ·
Expectation values of vector component products in spherical coordinates
- begyu85
- · Replies 1 ·
Finding maximum height and vertical velocity from projectile motion data
- Charlie_russo
- · Replies 4 ·
Find Value of p for g(x) to Avoid Vertical Asymptote
- teffy3001
- · Replies 14 ·
Solve Higher Order DE: Factoring to Find General Solution
- suspenc3
- · Replies 4 ·
How to Solve for a1 in Given Equations with Multiple Variables and Fractions
- 2slowtogofast
- · Replies 9 ·
Finding linear map compositions h ∘ f and h ∘ g
- Physicsissuef
- · Replies 18 ·
Why use difference of squares form for (a+1)² − (a−1)²
- alpha01
- · Replies 4 ·
Equation whose roots are the squares of o, p, and q
- sissi169
- · Replies 9 ·
Parallelogram with coordinates
- Physicsissuef
- · Replies 3 ·
Normal distribution for concrete roadway thickness
- Dani16
- · Replies 1 ·
Sum of reciprocals when sum is 50 and product is 900
- rocomath
- · Replies 12 ·
How Do You Calculate the Radius of Curvature for a Projectile's Trajectory?
- Chantry09
- · Replies 2 ·
Solving Cylinder Volume from Rectangle Perimeter of 40cm
- danizh
- · Replies 6 ·
Solving an Absolute Value Inequality with Two Terms
- projection
- · Replies 9 ·
Solving for Boat Movement with Vectors: Direction and Speed in a Current
- terainfizik
- · Replies 2 ·
Why does cross multiplying give (a+1)² and (a-1)²?
- alpha01
- · Replies 6 ·
Calculating Distance Between Parallel Lines in 3D Space
- Dr Zoidburg
- · Replies 4 ·
Some factorizing and other equations,
- Saturnfirefly
- · Replies 5 ·