योगफल (1)/(sin 45^(@) sin 46^(@)) + (1)/...

योगफल `(1)/(sin 45^(@) sin 46^(@)) + (1)/(sin 47^(@) sin 48^(@)) + (1)/(sin 49^(@) sin 50^(@))+....+ (1)/(sin 133^(@) sin 134^(@))` का मान होगा-

A

`sec(1)^(@)`

B

`cosec(1)^(@)`

C

`cot(1)^(@)`

D

none

Verified by Experts

The correct Answer is:

B

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