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Solve the expression cosec^{-1}x= \frac{-1}{2}

  • Option 1)

    \pi/6

  • Option 2)

    -\pi/6

  • Option 3)

    \pi/3

  • Option 4)

    doesn't exist

 

Answers (1)

best_answer

As we learnt

Important Results of Inverse Trigonometric Functions -

cosec ^{-1}\left ( -x \right )= - cosec ^{-1}x

-

 

 Since 

 

Important Results of Inverse Trigonometric Functions -

cosec ^{-1}x\in R-\left ( -1,1 \right )\neq \frac{-1}{2}


Option 1)

\pi/6

Option 2)

-\pi/6

Option 3)

\pi/3

Option 4)

doesn't exist

Posted by

Himanshu

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