Question

simplest rationalisation of 3√40​

Answer 1

Answer:

Simplest rationalization factor of 3√40 is

(a) 3 √25

(b) 3√5

(c) √40

(d) √5

EVALUATION

Here the given number is 3√40

CHECKING FOR OPTION : (a)

Which is an irrational number

So this option is not correct

CHECKING FOR OPTION : (b)

Which is an irrational number

So this option is not correct

CHECKING FOR OPTION: (c)

Which is a rational number

So this option is correct

CHECKING FOR OPTION : (d)

Which is an irrational number

So this option is not correct

FINAL ANSWER

Hence the correct option is (c) √40