Question

Which of the following is an irrational number?निम्नलिखित में से कौन सी संख्या अपरिमेय संख्या है? *

√4
3√8
√100
- √0.64​

Answer 1

Answer:

the second option ( 3√8) is the correct answer

Step-by-step explanation:

since

a) √4 = 2 ( 2 is a rational number)

b) 3√8= 3√2×2×2

= 3×2√2

= 6√2. (6√2 is an irrational number)

c) √100 = 10 ( 10 is a rational number)

d) -√0.64 = -0.8 (-0.8 is a rational number)