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sec[sin^(-1)(-sin(50pi)/9) + cos^(-1) co...

`sec[sin^(-1)(-sin(50pi)/9) + cos^(-1) cos(-31 pi)/9]` का मान होगा |

A

`sec(10 pi)/9`

B

`sec pi/9`

C

1

D

`-1`

लिखित उत्तर

Verified by Experts

The correct Answer is:
D
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