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Identify the correct option

A

` (sin 3 alpha )/(cos 2 alpha) gt 0 ` for ` alpha in ((3 pi)/(8), (23 pi)/(48))`

B

` (sin 3 alpha )/(cos 2 alpha) lt 0 ` for ` alpha in ((13 pi)/(48), (14 pi)/(48))`

C

` (sin 2 alpha )/(cos alpha) lt 0 ` for ` alpha in (-(pi)/(2), 0)`

D

` (sin 2 alpha )/(cos alpha) gt 0 ` for ` alpha in ((13 pi)/(48), (14 pi)/(48))`

Text Solution

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The correct Answer is:
A, B, C, D
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