Fact 1: | arctan t<14 for any real number t. Fact 2: t <14 for any tE (-1, 1]. (a) Prove by using the triangle inequality that 2 arctan(2r) + ar|< (a +4)|r| if |r|S1. must indicate where you are using the triangle inequality in your solution. (b) Prove by using the definition of a limit that lim (2 arctan(2r) + ar) = 0.
Fact 1: | arctan t<14 for any real number t. Fact 2: t <14 for any tE (-1, 1]. (a) Prove by using the triangle inequality that 2 arctan(2r) + ar|< (a +4)|r| if |r|S1. must indicate where you are using the triangle inequality in your solution. (b) Prove by using the definition of a limit that lim (2 arctan(2r) + ar) = 0.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section: Chapter Questions
Problem 22RE
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