# Welcome to Free Math Help

What would you like to learn?

## Algebra

Covering pre-algebra through algebra 3 with a variety of introductory and advanced lessons.

## Geometry

Learn basic geometric shapes, properties, formulas, and problem solving techniques.

## Calculus

Look here for more advanced topics starting with pre-cal and extending through multivariable calculus.

## Trigonometry

Sines and cosine, angles and formulae.

## Statistics

Here's where we cover basics, like the mean and median, along with links to more advanced statistics topics.

## Solvers

Solve your own math problems with our selection of free online calculator tools.

Please help me with another test question. It is super hard! Fri, 07 Jun 2024 04:54:11 +0000

prove its true: |A union B| = |A| + |B| – |A intersection B| Thu, 13 Jun 2024 19:44:12 +0000

Is the [imath]\mathbb{S}^2[/imath] sphere diffeomorphic to [imath]P^2R[/imath] ? Sat, 15 Jun 2024 15:39:45 +0000

Im not sure how to do this... Sat, 15 Jun 2024 00:39:28 +0000

i want to show the sum of odd is zero Sat, 15 Jun 2024 12:52:51 +0000

I need help with unit conversion from 'gCO2 eq/MJ' to 'gCO2 eq/tonne' Thu, 13 Jun 2024 11:56:26 +0000

math understanding Tue, 30 Apr 2024 17:08:07 +0000

Why am I getting two different results? 15% of what is 7? Sat, 13 Apr 2024 01:50:10 +0000

Not sure how to title this except - Probability of a sequence occuring based on a % Fri, 14 Jun 2024 19:09:31 +0000

minimum number of candies you can pick Thu, 13 Jun 2024 16:42:10 +0000

Solving for h’(-1) Wed, 12 Jun 2024 10:12:18 +0000

Problem with substitution Sun, 09 Jun 2024 14:47:32 +0000

Why is this function piecewise continuous and not just continuous on [0,10] Thu, 13 Jun 2024 17:46:03 +0000

Auto generated differential equation for a series RLC circuit Tue, 11 Jun 2024 05:51:12 +0000

Help with finding the particular solution to this difference equation Sat, 15 Jun 2024 16:04:18 +0000

how to find the Galois group? Sat, 15 Jun 2024 10:47:54 +0000