Multiplication is a quick way of adding the same number many times.

In this lesson, students learn the Pythagorean Theorem, which states that the sum of the squares of the lengths of the legs of a right triangle is equal to the square of the length of the hypotenuse, or a^2 + b^2 = c^2.

What are logarithms and why are they useful? Get the basics on these critical mathematical functions.

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