This unit discusses radicals and the Pythagorean Formula.

This video explores radical expressions with higher degree roots.
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This video explores more techniques for simplifying radical expressions.
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This video explains the important technique of rationalizing the denominator
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This video explains how to deal with extraneous solutions to a radical equation.
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This video combines the techniques just covered on a variety of radical equations.
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This video extends the techniques just developed to apply to more complicated radical equations.
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This video explores examples of right triangles, then uses a calculator to compute the Pythagorian Theorem.
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Distance Formula

by Sal Khan
This video applies the Pythagorean Theorem to the distance between two points.
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Midpoint Formula

by Sal Khan
This lesson applies the Pythagorean Theorem to the midpoint of a line segment.
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This video provides a compelling visual proof to the Pythagorean Theorem
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