1.

The value of `sin^(-1) (sin 12) + cos^(-1) (cos 12)` is equal toA. zeroB. `24 - 2pi`C. `4pi -24`D. none of these

Answer» Correct Answer - A
`sin^(-1) (sin 12) + cos^(-1) (cos 12)`
`= sin^(-1) (sin (12 - 4pi)) + cos^(-1) (cos (4 pi - 12))`
`= 12 - 4pi + 4pi - 12 = 0`


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