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The value of the expression sin^(-1)(si...

The value of the expression `sin^(-1)(sin""(22pi)/7)+cos^(-1)(cos""(5pi)/3)+tan^(-1)(tan""(5pi)/7)+sin^(-1)(cos2)` is a)`(17pi)/42 -2` b)`-2` c)`(-pi)/21 - 2` d)None of these

A

`(17pi)/42 -2`

B

`-2`

C

`(-pi)/21 - 2`

D

None of these

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A
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