Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) The range of `f(x)= sin^-1[1/2+x^2]` is ([.] denotes greatest integer function) - Sarthaks eConnect

The range of `f(x)= sin^-1[1/2+x^2]` is ([.] denotes greatest integer function)

`{-pi/2, 0, pi/2}`

`{0, pi/2}`

`{pi/2}`

`{0, pi}`