Question

Given √5 is an irrational number, prove that 7- √5 is irrational

Answer 1

Step-by-step explanation:

7√5 = p/q. As, we can see that p/7q ia rational so √5 should also be rational.

But this contradict the fact that √5 is irrational.

hence , So, by this we can say that 7√5 is irrational numbe