# Appendix:A.2 Exponents and radicals. Integer Exponents exponent base.

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Appendix:A.2 Exponents and radicals

Integer Exponents exponent base

Scientific Notation Scientific notation has the form The positive exponent indicates that the number is large The negative exponent indicates that the number is small Example :: and n is an integer

Radicals and Their Properties

Perfect squares : 1, 4, 9, 16, 25 because they have integer square roots. Perfect cubes : 1, 8, 27, 64, 125 because they have integer cube roots.

Rationalizing Denominators and Numerators To rationalize a denominator or numerator of the form Multiply both numerator and denominator by a conjugate Example : Rationalize the denominator of each expression

Rational Exponents

Rational Exponent

Home work A.2 exercises  36, 38, 50, 74, 82, 84, 88, 100, 104

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