Question

Which of the following is rational? (i) √6 + √9 (ii) √4 +√9

Answer 1

2 one is rational number root 4 is 2 and root 9 is 3 which can be represented in the form of 2/1 and 3/1 which equals to 5/1

Answer 2

Answer:

                  √4 +√9 is a  rational number

Step-by-step explanation:

Rational number:

A number that can be expressed as an integer or the quotient of an integer divided by a nonzero integer.

(i) √6 + √9 = √3×√2+√3²

                    =√3(√2)+3

                    =3+√6  irrational number

(ii) √4 +√9 = √2²+√3²

                     =2+3

                    = 5  rational number

therefore √6 + √9 is irrational number

                  √4 +√9 is rational number