Q. 14.1( 281 Votes )

Classify the foll

Answer :

(i) 2 - = 2 – 2.2360679…

= -0.2360679…


Since the number is in non-terminating non-recurring, therefore, it is an irrational number


(ii) (3 + ) - = 3 + -


= 3


= 3/1


A number is a rational number as it can be represented in the form of p/q.


(iii) = 2/7


The number is a rational number as it can be represented in the form of p/q.


(iv) =


= 0.7071067811.....


Since the number is a non-terminating and non-recurring number.


Hence, it is an irrational number


(v) 2π = 2 * 3.1415…


= 6.2830......


Since the number is a non-terminating and non-recurring number.


Hence, it is an irrational number

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