Question

which of the following number is an irrational number?
a.√16-4
b.√9
c.√5+3
d.√-25​

Answer 1

Answer:

d is correct

Step-by-step explanation:

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Answer 2

Question given:

Which of the following number is an irrational number?

a.√16-4

b.√9

c.√5+3

d.√-25

Answer : d) √5+3

How?

→ As this is non-terminating and non-recurring decimals. There is no points on the number line which represents it. Thus, it is a irrational number.

Let's see the other options too:

a) √16-4 = 4-4 = 0

Thus, 0 is not a irrational number.

b) √9 = 3

Thus, 3 is a rational number.

d) √-25 = -5

Thus,-5 is a rational number.

Hence, all the other given options are not irrational number. So, √5+3 is the irrational number.