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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Can the minimum value of x + 1/x ever be less than 1 on x > 0?
- Rectifier
- · Replies 9 ·
Ways to put letters in postboxes
- fireflies
- · Replies 28 ·
{Combinatorics} Coins distributed among people.
- youngstudent16
- · Replies 3 ·
Solving Polynomials: Factoring
- Mary1910
- · Replies 12 ·
How Can I Solve tan(a)=-1 for Multiple Solutions?
- Rectifier
- · Replies 20 ·
Proof of the logarithm product rule
- josephgerth
- · Replies 14 ·
How does (n+1)^n(n+1)+1 expand to n(n+1)^n+(n+1)^n+1?
- Fabrizio
- · Replies 2 ·
Geometry Problem - Sum of distances
- franceboy
- · Replies 1 ·
{Geometry} Find length of the equilateral triangle
- youngstudent16
- · Replies 7 ·
{Geometry} Find the Area of the quadrilateral
- youngstudent16
- · Replies 6 ·
Tan() -- calculate the exact value w/o a calculator
- Rectifier
- · Replies 6 ·
Calculate the Unknown Angle of a Right Triangle
- Rectifier
- · Replies 2 ·
The problemFind side length using trig
- caters
- · Replies 6 ·
Probability density function of uniform distribution
- diracdelta
- · Replies 5 ·
Is ± Present When Taking 4th Root?
- Destroxia
- · Replies 5 ·
How Do Three Tangents Form an Equilateral Triangle Around a Circle?
- Saracen Rue
- · Replies 7 ·
Finding mean, median and mode for survey color preferences
- dimasalang
- · Replies 5 ·
Calculate Binomial Coefficient: {-3 \choose 0}, {-3 \choose 1}, {-3 \choose 2}
- LagrangeEuler
- · Replies 6 ·
Show smaller circle lie inside bigger circle
- goldfish9776
- · Replies 5 ·
How Do You Transform Trigonometric Expressions and Find Their Extremes?
- Theodore Hodson
- · Replies 4 ·
System reliability: probability of failure and conditional probability
- BigFlorida
- · Replies 12 ·
Combination or probability question
- rajeshmarndi
- · Replies 9 ·
Solving using permutation and combination
- rajeshmarndi
- · Replies 5 ·
Prove by method of contradiction
- agent1594
- · Replies 4 ·
4 balls and 4 cells probabillity
- diracdelta
- · Replies 14 ·
Choosing a president and 2-person committee from 8 people
- caters
- · Replies 2 ·
Finding the equation of a parabola with 1 point
- Jaco Viljoen
- · Replies 26 ·
Arrangement of letters in a word
- rajeshmarndi
- · Replies 11 ·
Different types of exponential growth equations?
- NanaToru
- · Replies 5 ·
Quick Limit Question (Pictures Included)
- Yawzheek
- · Replies 4 ·
Factoring a quadratic: strange issues
- ducmod
- · Replies 6 ·
Solving ln(x) = 5 - x for x
- Rectifier
- · Replies 4 ·
Proving the complex tangent formula tan(z) = (tan(a)+i tanh(b))/(1 - i tan(a)tanh(b))
- allamid06
- · Replies 3 ·
What is the name of this function?
- Rectifier
- · Replies 3 ·
Limit does not exist but function exist
- funlord
- · Replies 6 ·
Prove of number of subsets of a set
- rajeshmarndi
- · Replies 3 ·
Proving subset relationships for A = {1}, B = {1,2}
- Ryanodie
- · Replies 10 ·
Can Consecutive Powers Be Expressed as Polynomial Formulas?
- Keen94
- · Replies 23 ·
Solving a Trigonometry Problem with a Missing 90-Degree Angle
- Keith
- · Replies 4 ·
Solving an Equation with g(x) and h(x)
- Jaco Viljoen
- · Replies 25 ·
What is the Domain of l/g Without first calculating (l/g)(x)
- Jaco Viljoen
- · Replies 9 ·
Rational and irrational numbers
- Curieuse
- · Replies 29 ·
Conditional probability problem - good solution?
- diracdelta
- · Replies 5 ·
Geometric sum for compound interest savings account
- Rectifier
- · Replies 8 ·
Suppose the function f is defined as follows: f(x)=4x^2-5x+1
- Jaco Viljoen
- · Replies 10 ·
Suppose function g is defined as follows: g(x)=-(1/2)x-3
- Jaco Viljoen
- · Replies 9 ·
What is the magnitude of the aftershock
- gatita0225
- · Replies 1 ·
Cos(A-B) vs sin(A+B) [acos(x) + bsin(x) question]
- lionely
- · Replies 6 ·
A difficult problem on functions
- spaghetti3451
- · Replies 11 ·
Why does comparing rotation matrices give 120° and -60° instead of 240° and -120°?
- ahmed markhoos
- · Replies 4 ·
Use proof by induction to show that 2^n > n^3 for n>9
- PcumP_Ravenclaw
- · Replies 8 ·
How Do You Find a Vector with a Specific Magnitude in the Opposite Direction?
- mmont012
- · Replies 7 ·
Why does cos 2x = √3/2 have 32 solutions in [0,8π]?
- takando12
- · Replies 10 ·
The Probability Density of X^2?
- Kior
- · Replies 5 ·
How Do You Solve These Delegation Selection Problems in Combinatorics?
- diracdelta
- · Replies 9 ·
True/False : Stationary process In stochastic process
- hojoon yang
- · Replies 1 ·
Transforming Functions: Solving g(x) = 2f(-x+(3/2))
- AAAA
- · Replies 4 ·
Finding non-zero matrix X satisfying AX + XA = 0
- Appleton
- · Replies 9 ·
Statistics problem using cumulative from mean
- MarcL
- · Replies 5 ·
Prove that the rationals are dense
- PcumP_Ravenclaw
- · Replies 10 ·
(euclidean geometry) Euclid's elements proposition 13 book
- astrololo
- · Replies 1 ·
Quadrilateral Angle Ratio and Classification: Parallelogram or Rhombus?
- mpx86
- · Replies 1 ·
Finding log([x+y]/√5) given x/y + y/x = 3
- lionely
- · Replies 14 ·
Solving a logarithm equation without change of base
- lionely
- · Replies 16 ·
Are scaled time arguments like X(2t) still Gaussian or Poisson processes?
- hojoon yang
- · Replies 2 ·
Find linear equation based on given costs
- ducmod
- · Replies 8 ·
Solving trigonometric equations using compound angle formula
- Tangeton
- · Replies 7 ·
Explaining E[(X−µ)³] calculation and variance formula
- Kior
- · Replies 2 ·
Is the argument sound? Yes, the argument is sound.
- Keen94
- · Replies 4 ·
Trigonometric Equation solving
- bnosam
- · Replies 36 ·
Point of Intersection involving logarithms
- Potatochip911
- · Replies 4 ·
Probably a geometric series question
- mpx86
- · Replies 1 ·
Proofs using the binomial theorem
- Keen94
- · Replies 1 ·
Prove that the sum of binomial coefficients equals 2^n
- Keen94
- · Replies 3 ·
Does a set of three matrices span the space of 2×2 matrices?
- sciencegem
- · Replies 2 ·
Mathematical Modelling, Vectors and Parametric Equations
- Nile Anderson
- · Replies 8 ·
Is x=0 a solution to the inequality above?
- Rectifier
- · Replies 21 ·
Square root of complex number on a calculator
- Gremlin
- · Replies 28 ·
Trying to Find Coords of a Local Maximum and Minimum
- cmkluza
- · Replies 7 ·
What Values of \( p \) Ensure \( p(x^2+2) < 2x^2+6x+1 \) for All \( x \)?
- Theodore Hodson
- · Replies 16 ·
Finding eigenvalues λ for the matrix transformation
- Appleton
- · Replies 7 ·
Let f, g and h be functions defined below:
- Jaco Viljoen
- · Replies 14 ·
Which of the following is/are true?
- Jaco Viljoen
- · Replies 3 ·
Which statements about exponential, reciprocal and square root functions are true?
- Jaco Viljoen
- · Replies 6 ·
Which of the following represent a function
- Jaco Viljoen
- · Replies 25 ·
Prove that 33 divides 2^55 + 1
- jack476
- · Replies 3 ·
Let f, g and h be functions defined as follows:
- Jaco Viljoen
- · Replies 2 ·
The circle with the equation x^2+y^2-2x+4y=0
- Jaco Viljoen
- · Replies 14 ·
Diameter of a circle endpoints P(0,0) Q(8,-4) what equation:
- Jaco Viljoen
- · Replies 3 ·
Combination with repeatation formula
- rajeshmarndi
- · Replies 1 ·
How to find the argument of a function?
- znaya
- · Replies 5 ·
What Are the Effects of Different Transformations on the Function y=e^x?
- Samurai44
- · Replies 10 ·
Prove that universal quantifiers commute: ∀x∀y p(x,y) ⟺ ∀y∀x p(x,y)
- amilapsn
- · Replies 7 ·
Finding the height of a cone with similar cones
- Ruturaj Vaidya
- · Replies 8 ·
The discriminant of a quadratic and real solutions
- Keen94
- · Replies 2 ·
Proving polynomial identity 3x²-5x-2=(3x+1)(x-2)
- Keen94
- · Replies 7 ·
Distribution function primitive
- cham
- · Replies 2 ·
Basic Proof Writing: Prove Sum of 3 Odd Ints is Odd
- Keen94
- · Replies 6 ·
Truth Set for the given Equivalence
- Keen94
- · Replies 10 ·
P-value for observing 4 heads in 5 fair coin flips
- Mr Davis 97
- · Replies 2 ·