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17. Prove the following identities a. tanx + 1 tanx 1 sinxcosz cos²x-sin²x cos x+sinxcosx cotx−1 cotx

17. Prove the following identities a. tanx + 1 tanx 1 sinxcosz cos²x-sin²x cos x+sinxcosx cotx−1 cotx

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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17. Prove the following identities a. tanx + 1 tanx 1 sinxcosz b 2 2 cos x-sin x 2 cos x+sinxcosx || cotx−1 cotx
Transcribed Image Text:17. Prove the following identities a. tanx + 1 tanx 1 sinxcosz b 2 2 cos x-sin x 2 cos x+sinxcosx || cotx−1 cotx
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