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Math 11 Chapter 2
Sets, Functions and Groups
Test - 6
1.
A Singleton set has……………….
a) None of these
b) One element
c) Two element
d) No element
2.
No. of elements in the power set of a set containing n elements is ___________.
a) 2 n
b) n x n
c) 2
n
d) 2
nxn
3.
A semi group having an identity is called _____________.
a) Monoid.
b) Bioid
c) Trioid
d) Flouride
4.
If A and B are disjoint sets then A-B = A.
a) True
b) False
5.
A
Í
B iff x
Î
A _______________.
a) C
b) B
c) A
d) D
6.
The function {(x,y)/y=ax
2
+bx+c} is called __________.
a) Onto Function
b) Quadratic function.
c) Into Function
d) One to One function
7.
The fourth root of unity are { 1,-1, i, o}.
a) True
b) False
8.
Tabular form of A = {x/x
Î
R x = -x}.
a) { 0 2}
b) { 10 }
c) { 30 }
d) { 0 }
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