Which of the following is a rational number?
square root 1
square root 2
square root 3
square root 5

Question

Which of the following is a rational number?
square root 1 
square root 2 
square root 3 
square root 5

anonymous · Answer

a rational number is a number that can be written as a ratio of 2 numbers.

anonymous · Answer

use calculator dude....

anonymous · Answer

@leong stop discouraging this poor guy :(

anonymous · Answer

You see, square root of 1 is just 1, but square root of 2, 3 and 5 are infintely long.
Therefore the 1 can be expressed as a fraction lie this 1/1

anonymous · Answer

Square root of 1 is the rational number Final answer.

anonymous · Answer

thank you !

anonymous · Answer

No problem!

unklerhaukus · Answer

The square root of any prime number, is irrational

zzr0ck3r · Answer

@science00000 I rational number is a number that can be written as the ratio of two $\mathbf{integers}$.

Clearly $\frac{\pi}{1}$ is the ratio of two NUMBERS but it is NOT rational.