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The domin of the function `cos^(-1) (2x-1)` is

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The domin of the function `cos^(-1) (2x-1)` is
A. `[0,1]`
B. `[-1,1]`
C. `(-1,1)`
D. `[0,pi]`
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1 Answer

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Correct Answer - A
We have, `f(x) =cos^(-1)(2x-1)`
`:. -1 le 2x le - 1 le 1`
`rArr 0 le x le 1`
`rArr 0 le x le 1`
`x in[0,1]`
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