Find the domain of the inverse trigonometric function  is,

Answer (Detailed Solution Below)

Option 3 :
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NDA 01/2025: English Subject Test
30 Qs. 120 Marks 30 Mins

Detailed Solution

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Concept:

The domain of inverse sine function, sin x is 

Calculation:

The domain of the function  is calculated as follows:

⇒       ...(1)

Also, 

Square it to get x,

Now, 

 and 

Here we have to find the common values of x.

For, 

Here, the values of x for which LHS will change its sign will be -1 and 1 so the values of x for the above inequality,

⇒       ....(2)

For,

        ....(3)

Take, all the common intervals from equations 1, 2, and 3,

We will get, 

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