Question

If a2 + b2 square + 1/a2+ 1/b2=4, then a2+b2 =?

Answer 1

Step-by-step explanation:

(2a+2b)^2+1/2a+1/2b=4

2ab(2a+2b)^2+b+a=4

(2a+2b)^2=4-a-b/2ab

2a+2b=√4-a-b/2ab