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Find the exact value of each expression. (a) sin(40°) cos(20°) + cos(40°) sin(20°) (b) sin(75°) (c) sin (72)

Find the exact value of each expression. (a) sin(40°) cos(20°) + cos(40°) sin(20°) (b) sin(75°) (c) sin (72)

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Find the exact value of each expression. (a) sin(40°) cos(20°) + cos(40°) sin(20°) (b) sin(75⁰) (c) 7π sin (772) 12
Transcribed Image Text:Find the exact value of each expression. (a) sin(40°) cos(20°) + cos(40°) sin(20°) (b) sin(75⁰) (c) 7π sin (772) 12
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