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Use compound-angle formulae to solve, for 0 < 0 < 2r: a sin (0 + ) = 2 sin (0 – ) c cos 40 cos 0 + sin 40 sin 0 = (Hint: In part d, write cos 30 as cos (20 + 0).) b cos (0 - ) = 2 cos (0 + ) } d cos 30 = cos 20 cos 0

Use compound-angle formulae to solve, for 0 < 0 < 2r: a sin (0 + ) = 2 sin (0 – ) c cos 40 cos 0 + sin 40 sin 0 = (Hint: In part d, write cos 30 as cos (20 + 0).) b cos (0 - ) = 2 cos (0 + ) } d cos 30 = cos 20 cos 0

Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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a and c and d only

Use compound-angle formulae to solve, for 0 < 0 < 2r: a sin (0 + ) = 2 sin (0 – §) c cos 40 cos 0 + sin 40 sin 0 = b cos (0 – ) = 2 cos (0 + ) d cos 30 = cos 20 cos 0 (Hint: In part d, write cos 30 as cos (20 + 0).)
Transcribed Image Text:Use compound-angle formulae to solve, for 0 < 0 < 2r: a sin (0 + ) = 2 sin (0 – §) c cos 40 cos 0 + sin 40 sin 0 = b cos (0 – ) = 2 cos (0 + ) d cos 30 = cos 20 cos 0 (Hint: In part d, write cos 30 as cos (20 + 0).)
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