Question

which of the following is a rational number?
(a) 1+√3 (b) π (c) 2√3 (d) 0

​

Answer 1

Answer:

d) 0

Step-by-step explanation:

1+✓3 is irrational because sum of rational and irrational is always irrational.

π:- we don't know what is the actual value of pie. we have just assumed it.

2✓3is irrational because product of rational and irrational is irrational.

0 is the last option. so, it is an irrational no. also it can be explained in p/q form.

see 0 =0/1 etc.

Answer 2

Given : four options are given

To find : Which option is a rational number

Solution:

Rational number are those numbers which are represented in form of p/q or decimal form where q is not equal to 0

Irrational numbers are those number which are non repeating and non terminating decimal numbers .

Here in this question:

0 is a rational number

While other numbers

1+root 3 is Irrational because sum of rational and irrational number is always irrational

2root3 is irrational as multiplication of rational and irrational is irrational

pi =3.145.... is a irrational number.

Answer: 0 is a rational number.Option d is correct