Question

Find a , if a is rational number and a×a=a​

Answer 1

Step-by-step explanation:

In mathematics, a rational number is a number that can be expressed as the quotient or fraction

q

p

of two integers, a numerator p and a non-zero denominator q. Since q may be equal to 1, every integer is a rational number.

(

2

)

2

=

1

2

has the only rational option.

The remaining options have an irrational number.

Answer 2

Step-by-step explanation:

Any rational number multiplied by a rational number it is also a Rational number

So a is a rational number