If f(x) = x + 1/x , then which of the following is correct?
[ f (x) ]3 = f (x)3 + 3 f (x)
[ f (x) ] 3 = f (x)3 - 3 f (1/x)
[ f (x) ]3 = f (x 3 )+ 3 f (1/x)
f (x)3 = (f [x])3 - 3 f (x)
If f(x) = x2 - 2x + 3,find f(1)?
1
2
3
4
Range of function f (x) = is.
( -∞, 1 )
(-∞, 1 ]
(1, ∞ )
(0, ∞ ]
Domain of the function f (x) = is.
R
R - {-3,3}
R - {3}
R -{√3,3}
f(x) = Find f (3) .
8
6
Not defined
Domain of f (x) = is .
(5, ∞ )
(0, ∞ )
(-5 ,5 )
(0, 5 )
f (x) = f (1/2 ) =
3/4
-3/4
Sum of identity function and modulus function is.
If f (x) = and g (x) = 2x2 + 3, then (f + g) (x) =
3x2 + 4
+ 2x2 + 3
- 2x2 - 3
- 2x2 + 3
If f(x) = x2 - 2x + 3, find f(3)?
