यदि cosec 2theta = sec(3theta -15^(@)) ...

यदि `cosec 2theta = sec(3theta -15^(@))` , तो `theta` बराबर है :

A

(a) `22^(@)`

B

(b) `20^(@)`

C

(c) `25^(@)`

D

(d) `21^(@)`

लिखित उत्तर

Verified by Experts

The correct Answer is:

D

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