Question

Root 5 is a irrational number

Answer 1

Answer:

true,root 5 is a irrational number

Answer 2

yes ..

Because,

Let's first assume it to be a rational number

√5=a/b(a,b are co-prime integer and b≠0)

a=b√5

a²=5b²

Now

a²=25c²

5b²=25c²

b²=5c²

-------->5 is the factor of b²

--------->5 is the factor of b

therefore 5 is a common factor of a, b

but this contradiction the fact that a, b are co-primes

Hence ✓5 is irrational