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2tan^(-1)(-2) equal to...

`2tan^(-1)(-2)` equal to

A

`-cos^(-1)((-3)/5)`

B

`-pi+cos^(-1)""3/5`

C

`-pi/2+tan^(-1)(-3/4)`

D

`-pi+cot^(-1)(-3/4)`

Text Solution

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The correct Answer is:
A, B, C
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