Presentation on theme: "7.1/7.2 Nth Roots and Rational Exponents"— Presentation transcript:
1 7.1/7.2 Nth Roots and Rational Exponents How do you change a power to rational form and vice versa?How do you evaluate radicals and powers with rational exponents?How do you solve equations involving radicals and powers with rational exponents?
2 The Nth root Radical Index Number n > 1 The index number becomes the denominator of the exponent.Radicand
3 Radicals If n is odd – one real root. If n is even and a > Two real rootsa = One real roota < No real roots
4 Example: Radical form to Exponential Form Change to exponential form.oror
5 Example: Exponential to Radical Form Change to radical form.The denominator of the exponent becomes the index number of the radical.