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Domain and Rariges of cos–1 is:- -

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Question

Domain and Rariges of cos–1 is:-

Options

  • `[-1, 1], [(-pi)/2, pi/2]`

  • `[-1, 1], [0, pi]`

  • `R, ((-pi)/2, pi/2)`

  • `R, (0, pi)`

MCQ

Solution

`[-1, 1], [0, pi]`

Explanation:

sin–1 : `[-1, 1] -> [-pi/2, pi/2]`

cos–1 : `[-1, 1] -> [0, pi]`

cosec–1 : `R - (-1, 1) -> [- pi/2, pi/2] - |0|`

sec–1 : `R - (-1, 1) -> [0, pi] - |pi/2|`

tan–1 : `R -> (- pi/2, pi/2)`

cot–1 : `R - (0, pi)`

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