1
3
4
2
If f(x) = x2 - x-2 , then f(1/x) is equal to _____.
f(x)
-f(x)
-1/f(x)
(f(x))2
If the inverse of the function f(x) = -x is g(x), then which is true?
g(x) = x
g(x) = -x
g(x) = 1/x
g(x) = -1/x
__________
__________.
If A contains 3 elements and B contains 2 elements, then the number of relations from A to B are ______.
64
32
16
6
The domain of the function f = { ( 1,3 ), ( 3,5 ), ( 2,6 ) } is ________.
1, 3 and 2
{ 1, 3, 2 }
{ 3, 5, 6 }
3, 5 and 6
If a set A contains 5 elements and B contains 4 elements, then the number of elements in A * B is ________.
9
20
5
The range of is ___________.
-1
{ 1 }
{ -1 }
A function f : x → y is called a _________ if its range is a singleton set.
Identity function
Polynomial function
Constant function
both (1) and (3)