1.

Which of the following is (are) incorrect ?

Answer»

If `f (X)= sin x and g(x) =` in x then range of `g (f (x))` is `[-1,1]`If `f (x)=(2011 -x ^(2012))^(1/2012)` then `f (f(2)) =1/2`
The FUNCTION `f : R to R` DEFINED as `f (x) = (x^(2) + 4x+30)/( x ^(2) -8x+18)` is not surjective.

ANSWER :A::B


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