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What is the principal value of "cos"^(-1...

What is the principal value of `"cos"^(-1)("cos"(2pi)/(3))+"sin"^(-1)("sin"(2pi)/(3))` ?

A

`pi/2`

B

`-pi`

C

`pi`

D

`0`

Text Solution

Verified by Experts

The correct Answer is:
C
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