Question

Which of the following is irrational-

(i) 0.15 (ii) 0.1516 (iii) 0 .79 (iv)None of these​

Answer 1

Answer:

None of these

Hope the answer is help ful for you

Please brainlest me the answer

Answer 2

Given:

To Find:

Which is irrational number ?

Solution:

Rational number:-

If decimal expansion of number terminate or non terminate but repeat some pattern. It will be rational number. Let us see option;

Option (a) = 0.15

Its decimal expansion is terminate, so it is rational number.

Option (b) = 0.01516

Its decimal expansion is terminate, so it is rational number.

Option (c) = 0.15161516...

Its decimal expansion is non-terminate but it is repeating. Repeating pattern are 1516. So it is rational number.

Irrational number:-

If decimal expansion of number is non terminate also non repeating of some pattern. It will be irrational number. Let us see option;

Option (d) = 0.15161516...

Its decimal expansion is neither non-terminate nor repeating. So it is irrational number.

So option d is irrational number.