Question

identify the following as rational or irrational number give the decimal representation of rational number 3 root 18​

Answer 1

3√18=3√2×3×3=3×3√2=9√2=9×1.414=1.2826 is the rational because it can be expressed in the form of p/q.

Answer 2

$\sf \underline\red{Solution:}$

b) 3√18

3√18 = 9√2

Since, the product of a rational and an irrational number is an irrational number.

Therefore, 3√18 is an irrational.

Or 3 × √18 is an irrational number.

$\sf \blue{Thanks}$