if a,b are coprime, then a², b^{2 are}

(a)coprime (b)not coprime (c)odd nos (d)even nos

Two numbers are said to be co-prime if their H.C. F is 1.

Now, it is given that a, b are co-prime numbers.

So, HCF (a,b) = 1

Now, when the two numbers are a² and b², then also their HCF = 1 , because the factor of a² would be 1, a and a² whereas factor of b² would be 1,b and b².

Hence,  HCF (a²,b²) = 1

Hence, the number a², b² are said to be co-prime numbers.