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Find the value of sin^(-1) ( sin "" ...

Find the value of ` sin^(-1) ( sin "" (5pi)/(9 ) cos "" (pi)/(9) + cos ""(5 pi )/(9) sin ""(pi) /(9))`

Text Solution

Verified by Experts

The correct Answer is:
`=pi/3`
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Knowledge Check

  • The value of sin^(-1)(cos""(33pi)/(5)) is………….

    A
    `(3pi)/(5)`
    B
    `(-pi)/(10)`
    C
    `(pi)/(10)`
    D
    `(7pi)/(5)`

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