Q.

The values of sin⁡cos−1⁡35+cosec−1⁡135, is

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a

4865

b

1565

c

3365

d

6365

answer is D.

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Detailed Solution

sin⁡cos−1⁡35+cosec−1⁡135=sin⁡cos−1⁡35cos⁡cosec−1⁡135+cos⁡cos−1⁡35=sin⁡sin−1⁡45cos⁡cos−1⁡1213+cos⁡cos−1⁡35sin⁡sin−1⁡513=45×1213+35×513=6365
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