Question

add the following x²-y²-1,y²-1-x²,1-x²-Y² step by step ​

Answer 1

Step-by-step explanation:

Following AP-GP inequality -

x+y/2>=xy−−√

Equality holds for x=y

x2+1/x2>=2

y2+1/y2>=2

Adding these two equations -

x2+y2+1/x2+1/y2>=4

Equality holds for x2=1/x2=>x=+−1

y2=1/y2=>y=+−1

so x2+y2=2