If f:A → B and g:B → C are onto, then gof:A → C is _________
One - one
Onto
Bijective
None of these
If f:R → R is defined by f(x) = x2 - 3x + 2 then f(f (x)) = _______.
x4 + 6x3 + 10x2 + 3x
x4 - 6x3 + 10x2 - 3x
x4 + 6x2 - 10x2 - 3x
x4 + 6x3 - 10x2 + 3x
{2, 4, 6}
Let f:{2, 3, 4, 5} → {3, 4, 5, 9} and g = {3, 4, 5, 9} → {7, 11, 15} be functions defined as f(2) = 3, f(3) = 4, f(4) = f(5) = 5 and g(3) = g(4) = 7 and g(5) = g(11) = 11 Find g o f(2)
7
11
10
5
The function f:R → R defined by f(x) = x2 is _________
On - to
