This preview shows pages 1–8. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: Chapter 10 Rational Exponents, Radicals, and Complex Numbers 10.1 Radicals and Radical Functions MartinGay, Beginning and Intermediate Algebra, 4ed 3 Square Roots The inverse of squaring a number is taking the square root of a number. A number b is a square root of a number a if b 2 = a. In order to find a square root of a , you need a number that, when squared, equals a. MartinGay, Beginning and Intermediate Algebra, 4ed 4 Principal and Negative Square Roots If a is a nonnegative number, then is the principal or nonnegative square root of a a is the negative square root of a . aPrincipal Square Roots MartinGay, Beginning and Intermediate Algebra, 4ed 5 A radical expression is an expression containing a radical sign . A radicand is the expression under a radical sign. Note that if the radicand of a square root is a negative number, the radical is NOT a real number. Radicands MartinGay, Beginning and Intermediate Algebra, 4ed 6 = 49 7 = 16 25 4 5 =4 2Radicands Example: MartinGay, Beginning and Intermediate Algebra, 4ed 7 Square roots of perfect square radicands simplify to rational numbers (numbers that can be written as a quotient of integers). can be written as a quotient of integers)....
View
Full
Document
 Fall '10
 Alraban
 Math, Radicals, Exponents, Square Roots, Complex Numbers

Click to edit the document details