Find the exact value of x: cos 1 x = tan 1 (1).
Question:
Find the exact value of x: cos−1 x = −tan−1(−1).
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We know that cosx is the inverse cosine function which g...View the full answer
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Related Book For 
Basic Technical Mathematics
ISBN: 9780137529896
12th Edition
Authors: Allyn J. Washington, Richard Evans
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