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Math 11 Chapter 2
Number System
Test - 6
1.
π is a ………….
a) Rational Number
b) Irrational number
c) Whole number
d) Natural number
2.
The set {1 , - I} possesses closure property with respect to?
a) Subtraction
b) None of these
c) Multiplication
d) Addition
3.
√
2
is a __________ number.
a) None
b) Prime
c) Rational
d) irrational
4.
If a belongs to R, a = a; represents?
a) Additive property
b) Symmetric property
c) Transitive property
d) Reflexive property
5.
For all a, b, C. E R , if (a+b)+c = a+(b+c) then this property is?
a) Commutative
b) Commutative under addition
c) Distributive
d) Associative
6.
The inverse of an dement 'a' with respect to addition is?
a) 0
b) -a
c) 1
d) 1/a
7.
The set {0, -I} possesses closure property with respect to?
a) Neither (A) nor (B)
b) Both (A) and (B)
c) Multiplication
d) Addition
8.
-1 in polar form can be written as:
a) Cos π + i. Sin π
b) None of the above.
c) Cos 3π /2 + i.Sin 3π/2
d) Cos π /2 + i. Sin π /2
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