__________
If A = { 1,2 } and B = { 3,4 } then A * B =
{ ( 1,3 ), ( 2,4 ) }
{ ( 3,1 ), ( 4,2 ) }
{ ( 1,2 ), ( 3,4 ) }
{ ( 1,3 ), ( 1,4 ), ( 2,3 ), ( 2,4 ) }
__________.
If f(x) = 2x , then f(0), f(1), f(2), ..... are in _____.
Arithmetic Progression
Geometric Progression
Harmonic Progression
Arbitrary
If f(x) = x2 - x-2 , then f(1/x) is equal to _____.
f(x)
-f(x)
-1/f(x)
(f(x))2
If a set A contains 5 elements and B contains 4 elements, then the number of elements in A * B is ________.
9
20
5
4
1
3
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
which is true
f-1(x) = f(x)
f-1(x) = -f(x)
f(f(x)) = -x
f-1(x) = -1/19 f(x)
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)
