मराठी

Find the value of tan-1[2cos(2sin-1 12)]+tan-11.

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प्रश्न

Find the value of `tan^-1 [2 cos (2 sin^-1  1/2)] + tan^-1 1`.

बेरीज
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उत्तर

`tan^-1 [2 cos (2 xx π/6)] + tan^-1 (1)`

= `tan^-1 (2 cos  π/3) + π/4`

= `tan^-1 (2 xx 1/2) + π/4`

= `tan^-1 (1) + π/4`

= `π/4 + π/4`

= `π/2`

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2022-2023 (March) Delhi Set 3
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