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
Domain of f (x) = is
R - { -2, 2 }
R - {-1, 1 }
R - { 2 }
R
Domain of f (x) = is.
R - { -4 }
R - {4}
R - {2}
None of these
Range of f (x) = is
(0, ∞ )
(0, 5 )
(5, ∞ )
(-5, 5 )
Let f, g : R → R be defined by f ( x ) = 2 x + 1, and g ( x ) = x-1/2, then find fog
x2
x/2
2 x
x
If each element of the range is associated with exactly one element of the domain, then it is said to be _______ function.
On to
One to one
Inverse
Identity
Range of function f (x) = is.
( -∞, 1 )
(-∞, 1 ]
(1, ∞ )
(0, ∞ ]
The function f : R → R defined by f ( x ) = x + 1 is
Injective
Bijective
The domain of the rational function
R - { 0 }
R - { 0, 1}
R - { 0, 2 }
