sec^(2) 29^(@) -cot^(2) 61^(@) + sin^(2)...

`sec^(2) 29^(@) -cot^(2) 61^(@) + sin^(2) 60^(@) + cosec^(2) 30^(@)` बराबर है :

A

`(19)/(4)`

B

`(23)/(4)`

C

`(15)/(4)`

D

`(11)/(4)`

लिखित उत्तर

Verified by Experts

The correct Answer is:

B

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