Range of f (x) = is
(0, ∞ )
(0, 5 )
(5, ∞ )
(-5, 5 )
Domain of f (x) = is
R - { -2, 2 }
R - {-1, 1 }
R - { 2 }
R
The domain of the rational function
R - { 0 }
R - { 0, 1}
R - { 0, 2 }
The two functions f, g : R → R are defined by f (x ) = x + 1, g ( x ) = x2
The value of f + g is
x2 + x + 1
x2 - 1
x2 - x + 1
x2 + 1
If f (1 + x) = x2 + 1, then f(2 - h) =
h2 - 2 h + 2
h2 + 2 h + 2
h2 - 2 h + 4
h2 + 2 h + 4
Let f, g: R → R be defined by f( x ) = 2 x + 1 and g ( x ) = x -1/2, then gof =
x
2 x
x -1
x + 1
The function f(x) = is.
Even
Odd
Neither even nor odd
None of these
Range of f (x) = is.
[-1, 1 ]
[0 , ∞ ]
[-1, 0 ]
[0, 1 ]
Range of function f (x) = is.
( -∞, 1 )
(-∞, 1 ]
(1, ∞ )
(0, ∞ ]
Let f: R →R be a function defined by
f( x ) = 2x + 1. Then f -1 is
(x - 1)/2
(x + 1)/2