# 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.

fraction within fraction algebra: sqrt(5)+2 = 4 + 1/(4 + 1/(4 + 1/(sqrt(5)-a))); find "a" Mon, 19 Feb 2024 19:25:24 +0000

Addition of fractions with denominators that are also contain addition Sun, 18 Feb 2024 02:06:25 +0000

quadratic intersecting circle: circle w/ center C(3,0) passes thru A(0,6); parabola passes thru 2 pts B, C, with... Wed, 21 Feb 2024 04:50:27 +0000

Confusion with recurrences: C_N = C(N/2) + N, N/2 + N/4 + N/8 + ... = 2N Tue, 20 Feb 2024 20:05:36 +0000

Finding radius Mon, 26 Feb 2024 13:19:41 +0000

little circle at top right corner of a square Fri, 23 Feb 2024 21:41:08 +0000

simplifying another surds: (sqrt(3 + sqrt(5 - sqrt(13 + sqrt(48))))) / (sqrt(6) + sqrt(2) Mon, 26 Feb 2024 16:51:30 +0000

simplifying surds: (1+2sqrt(3)+sqrt(5))/((1+sqrt(3))(sqrt(3)+sqrt(5))) + (sqrt(5)+2sqrt(7)+3)/((sqrt(5)+sqrt(7))(sqrt(7)+3)) Wed, 21 Feb 2024 07:04:06 +0000

Design an L-shaped Restaurant (customer requirements: all measurements must be in meters, ...) Wed, 21 Feb 2024 21:55:09 +0000

Determining Gross Amount from Net Amount Sun, 18 Feb 2024 22:00:05 +0000

Finding a marginal probability density (stuck at the integration) Fri, 23 Feb 2024 17:49:52 +0000

Calculating the mean of a sum of independent variables, with the same distribution, when the number of terms varies? Fri, 23 Feb 2024 15:00:49 +0000

Time Interval for Material Derivative Tue, 27 Feb 2024 13:46:22 +0000

Am I on the right track? Integration by substitution Tue, 27 Feb 2024 13:35:33 +0000

derivating v(x, t) := u(x-4t, t) on x and t (partial derivatives) Fri, 16 Feb 2024 14:30:03 +0000

Galois Group Tue, 27 Feb 2024 01:01:02 +0000

Physics Tension: A sign is hanging from 3 ropes with tension T1=320.51N, @1=61.9*, @2=37.1* Fri, 23 Feb 2024 22:59:48 +0000