7.1 Roots and Rational Exponents

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Presentation transcript:

7.1 Roots and Rational Exponents Objective: to rewrite radicals in rational exponent notation and evaluate radicals

nth root is defined as n is called the index of the radical Vocabulary

Real nth roots

Find the indicated real nth root(s) of a Examples

If is an nth root of a and m is some positive integer:

Examples: Change from exponent form to radical form

Examples: Change from radical form to exponent form.

Examples: Evaluating Expressions with Rational Exponents

You Try!

Approximating Root with a calculator

Examples: Solving Equations Using nth roots

Read Section 7.1 Pgs. 404-406: 13-22 all, 29, 30, 32, 34, 35, 37, 38, 40, 53, 55, 56, 59, 60, 78-84 even Assignment