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The domain of $y = \cos^{- 1} \frac{1 - 2 x}{4}$ is

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-32,52

-1, 1

0, 2

-12,32

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detailed solution

Correct option is A

The given function is defined if−1≤1−2x4≤1 i.e. if −4≤1−2x≤4,⇒−5≤−2x≤3⇒−32≤x≥52

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The domain of y = cos-11-2x4 is

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The domain of $y = \cos^{- 1} \frac{1 - 2 x}{4}$ is