If the function f:R → R given by f(x) = x2 + 3x + 1 and g: R → R given by g(x) = 2x - 3 find gof
4x2 - 6x + 1
4x2 + 6x - 1
2x2 + 6x - 1
2x2 - 6x + 1
If n(A) = 4 and n(B) = 2 then the number of surjections from A to B is _______.
14
2
8
none of these
The function f:R → R given by f(x) = 2x is ________
One - one
On to
Bijective
None of these
If f:R →R is defined by f(x) = x2 and g:R → R is defined by g(x) = sinx, then find gof
sin x2
sin2x
cos x
cos2x