यदि 2sin(3x - 15)^(@) = 1 0^(@) lt (3x...

यदि `2sin(3x - 15)^(@) = 1`
`0^(@) lt (3x - 15) lt 90^(@)` है , तो `cos^(2) (2x + 15^(@)) + cot^(2) (x + 15)^(@)` का मान ज्ञात करें।

A

1

B

`(5)/(2)`

C

`(7)/(2)`

D

`-(7)/(2)`

लिखित उत्तर

Verified by Experts

The correct Answer is:

C

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