Question

prove that 2 - root 7 is irrational given that root 7 is irrational

Answer 1

Step-by-step explanation:

if it is a one mark question u can also say that the difference between rational and irrational number is irrational so 2-root 7 is irrational .hope it helps u all the best

Answer 2

Answer:

ok this is your answer because it is not rational you can tell easily