Question

Q.11 The following real numbers have decimal expansions as given below. In each p case, decide whether they are rational or not. If they are rational, and of the form 9 what can you say about the prime factor of q? 3​

Answer 1

Answer:

43.123456789 is terminating

So, it would be a rational number

43.123456789=

1000000000

43.123456789

=

10

9

43.123456789

=

(2×5)

9

43.123456789

=

2

9

×5

9

43.123456789

Hence 43.123456789 is now in the form

q

p

And the prime factors of q are in terms of 2 and 5

hope it helps u