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?For the following exercises, prove the identities provided.\(\frac{\cos (x+h)-\cos
Chapter 9, Problem 51(choose chapter or problem)
QUESTION:
For the following exercises, prove the identities provided.
\(\frac{\cos (x+h)-\cos x}{h}=\cos x \frac{\cos h-1}{h}-\sin x \frac{\sin h}{h}\)
Text Transcription:
cos (x + h) - cos x / h = cos x cos h - 1 / h - sin x sin h / h
Questions & Answers
QUESTION:
For the following exercises, prove the identities provided.
\(\frac{\cos (x+h)-\cos x}{h}=\cos x \frac{\cos h-1}{h}-\sin x \frac{\sin h}{h}\)
Text Transcription:
cos (x + h) - cos x / h = cos x cos h - 1 / h - sin x sin h / h
ANSWER:Step 1 of 2
To prove the identity: