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1
On rationalizing the denominator, we get
2
Which one of the following is not a rational number ?
0
3
If the decimal representation of a number is non-terminating, non-repeating then the number is
a natural number
a rational number
a whole number
an irrational number
4
Express each of the following numbers in the form : 0.675
5
The decimal representation of a rational number is ______________________.
Always terminating
Either terminating or repeating
Either terminating or non-repeating
Nither terminating nor repeating
6
All the rattional and irrational numbers combined together to form a set of,
Real nos
Natural nos
Rational nos
Irrational nos.
7
From the choices given below mark the co-prime numbers
2 and 3
2 and 4
2 and 6
2 and 10
8
Express each of the following decimal numbers in the form : 8.0025
9
If , then equals
10
If then the value of 'a' and 'b' is
a = 2, b = -1
a = 2, b= 1
a = -2, b = 1
a = -2, b = -1
11
Decimal expansion of a rational number is terminating if in its denominator there is :
2 or 5
3 or 5
9 or 11
3 or 7
12
The value is
13
If n is a natural number then is
always a natural number
always an irrational number
Sometimes a natural number and sometimes an irrational number
14
The whole number that does not have a predecessor is ______________.
100
15
If a=2+ and b=2- then is equal to
-14
-8
16
If then the value of is
194
196
198
200
17
Which of the following fractions will you get on rationalizing the denominator of ?
18
If is equal to
0.1718
5.8282
0.4142
2.4142
19
20
Identify the incorrect statement from the following?
All natural numbers are integers.
All whole numbers are natural numbers.
All whole numbers are integers.
Zero is an integer.