Question

Exercise 1.2
1.
Find the cardinal number of the following sets.
(i) M = {p, q, r, s, t, u}
(ii) P = {x : x = 3n+2, ne W and x< 15}
(iii) Q = {y: y = 3n, n e N and 2 < n 55)
(iv) R = {x : x is an integers, xe Z and -5 < x <5}
(v) S = The set of all leap years between 1882 and 1906.
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Answer 1

Answer:

Step-by-step explanation:

Let, x=1.3  

23

.

Then, 10x=13.  

23

(1)

                =13.23  

23

 

and 1000x=1323.  

23

(2)

Now, subtracting  (1) from (2) we get,

990x=1310

⇒x=  

990

1310

​

=  

99

131

​

 

Which is the required  

q

p

​

form