Q2. Evaluate the integrals below by first using trigonometric identities to simplify the in- tegrands. You must show your work in simplifying and evaluating each integral. Give your answers as fractions or in terms of z, where appropriate. (1) ' sin? r dr 3m (ii) / sec"(x) da (iii) / sin a cos 2.r dr

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
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Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 69E
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Q2. Evaluate the integrals below by first using trigonometric identities to simplify the in-
tegrands. You must show your work in simplifying and evaluating each integral. Give your
answers as fractions or in terms of 7, where appropriate.
(i)
[* sin²,
r dr
3m
(ii) sec (r) da
(iii)
sin a cos 2x dr
Transcribed Image Text:Q2. Evaluate the integrals below by first using trigonometric identities to simplify the in- tegrands. You must show your work in simplifying and evaluating each integral. Give your answers as fractions or in terms of 7, where appropriate. (i) [* sin², r dr 3m (ii) sec (r) da (iii) sin a cos 2x dr
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