5. Prove cos 2x 1-sin 2x cos.x+sin x cos x −sin x
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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Transcribed Image Text:5. Prove
cos2x
1–sin2x
cos.x+sin x
cosx−sinx
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