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The principal value of cos^(-1) (cos 7pi...

The principal value of `cos^(-1) (cos 7pi/6)`= _____.

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Principal value of cos^(-1)[cos((7pi)/(6))] is

Write the principal value of,cos^(-1)(cos(7 pi)/(6))

Knowledge Check

  • The principal values of cos^(-1)(-sin(7pi)/(6)) is

    A
    `(5pi)/(3)`
    B
    `(7pi)/(6)`
    C
    `(pi)/(3)`
    D
    none of these
  • The value of cos^(-1)(cos(14pi/6)) is

    A
    `(13pi)/6`
    B
    `(7pi)/6`
    C
    `(5pi)/6`
    D
    `2pi/6`
  • Principal value of cos^(-1)[cos((4pi)/(3))] is

    A
    `-(2pi)/(3)`
    B
    `-(4pi)/(6)`
    C
    `(4pi)/(3)`
    D
    `(2pi)/(3)`
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    The principal solution of cos^(-1)(cos((9pi)/4)) is