Question:
If sin β is the GM between sin a and cos a, then cos 2β is equal to
If sin β is the GM between sin a and cos a, then cos 2β is equal to
Updated On: Mar 18, 2024
- \(2sin^2=(\frac{\pi}{4}-a)\)
- \(2cot^2=(\frac{\pi}{4}-a)\)
- \(2cos^2=(\frac{\pi}{4}-a)\)
- \(2sin^2=(\frac{\pi}{4}+a)\)
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The Correct Option is A
Solution and Explanation
The correct answer is(A): \(2sin^2=(\frac{\pi}{4}-a)\)
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