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Which of the following quantities is/are...

Which of the following quantities is/are positive?

A

`cos(tan^(-1)(tan4))`

B

`sin(cot^(-1)(cot4))`

C

`tan(cos^(-1)(cos5))`

D

`cot(sin^(-1)(sin4))`

Text Solution

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The correct Answer is:
A, B, C
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