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The value of cos^(-1)(-1//2) - 2sin^(-1)...

The value of `cos^(-1)(-1//2) - 2sin^(-1)(1//2) + 3 cos^(-1) (-1//sqrt(2)) - 4 tan^(-1)(-1)` is equal to

A

`7pi//4`

B

`11pi//4`

C

`pi//12`

D

`25pi//12`

Text Solution

Verified by Experts

The correct Answer is:
D
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MCGROW HILL PUBLICATION-INVERSE TRIGONOMETRIC FUNCTIONS -SOLVED EXAMPLES (LEVEL 1 SINGLE CORRECT ANSWER TYPE QUESTIONS)
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