MathVideo

Kids Doing Math : Multiplication of big numbers

In this video, Rakean (9 years old) explain how to multiply two repunits. Repunits are numbers where their digits completely consist of 1. He will discuss how to find the pattern of multiplying two repunits. At the end he show to to multiply to repunist hat have 13 digits.

Integration by Substitution : Hard Problem (part...

http://www.ask.watchmath.com to find the video answer to your problem========================================================In this video we discuss how to use substitution method to tackle two hard integral problems :).

substitution3

Substitution Method : The Basic

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Substitution Method : More Problems

http://www.ask.watchmath.com to see more videos In this video we discuss how to use substitution method for more difficult problem where it is not so obvious how to choose the u-substitution.

Volume

volume of revolution

`Solving Equations Involving Fractions

This video discuss how to solve equation involving fractions. On the second proble we will also see that somtimes an equation has no solution

How To Solve Linear Equation

Some examples of how to solve linear equation.

Related Rates 4

Related rates problem, derivative, pythagorean, calculus, implicit differentiation

Related Rates 2

Related rates problem, derivative, pythagorean, calculus, implicit differentiation