Functions Question 632

Question: The domain of the function $ f(x)=\frac{{{\sin }^{-1}}(x-3)}{\sqrt{9-x^{2}}} $ is

[AIEEE 2004]

Options:

A) [1, 2)

B) [2, 3)

C) [1, 2]

D) [2, 3]

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Answer:

Correct Answer: B

Solution:

To define $ f(x) $ , $ 9-x^{2}>3\Rightarrow -3<x<3 $ …..(i) $ -1\le (x-3)\le 1\Rightarrow 2\le x\le 4 $ …..(ii) From (i) and (ii), $ 2\le x<3 $ i.e., [2, 3).