Question

prove that root 7 + 3 root 5 is an irrational number

Answer 1

I hope you are satisfied for this answers

Answer 2

Answer:

Step-by-step explanation:

Letus assume the contrary 7+3root 5 is rational no.

So we find coprime integer a and b where b is not equal to 0

7+3√5= a/b

3√5=a/b-7

√5=a-7b/3b

√5is irrational no.

But this contradicts the fact that √5is irrational

Our assumptions is wrong

Therefore 7+3√5is irrational