Question

Which of the following is a rational number 1) (root 2+2)^2. 2) (2-root 2)×(2+root2) and 6/3root 2

Answer 1

Answer:

Step-1 Multiplying equation’s Nr and Dr by 2+3–√−−−−−−√ .

Step-2 Solving further

Step-3 Multiplying equations’s Nr and Dr by [2−3–√]

Step-4 Solving further

Answer = 23 [12+63–√−4+23–√−−−−−−−√]