Mark the tick against the correct answer in the following:

The value of is

To Find: The value of

Now, let x =

sec x =sec ()

Here range of principle value of sec is [0,]

x = [0,]

Hence for all values of x in range [0,] ,the value of

is

sec x =sec (2) (sec ()= sec () )

sec x =sec () (sec ()= sec )

x =