If the function = 2 for x = 2is continuous at x = 2, then
A = 1
A = -1
A = 2
A = 0
equals
2 √x
√ x
1/ √ x
1 / 2√x
The domain of th function where [x ] denotes the greatest integer less than or equal to x, is ______
(0, ∞ )
(-∞, 0)
( -∞, ∞ )
None of these
A function y = f ( x ) is said to be odd if _______.
f ( - x ) = - f (x )
f ( -x ) = f ( x )
f ( x ) = - f (x )
f ( x ) = f (x )
Domain of √(2-x) is ______.
( - ∞,2 ]
( 2, ∞)
( - ∞, ∞ )
The function f ( x ) = cosx - sin x / cos2x is not defined at x = π/4. The value of f ( π/4 ) so that f ( x ) is continuous everywhere is ______.
1
-1
√2
1/√2
If the inverse of the function f ( x ) = -x is g ( x ), then
g ( x ) = x
g ( x ) = -x
g ( x ) = 1/x
g ( x ) = -1 /x
A function f : X → X is called an identity function if :
f ( x ) = c , where C is some constant
f (x ) = x
f ( x ) = 1
Ltx → 2+ [x] is equal to ________.
0
2
3/2
2/3
1/6
6
