Find X and Y value | X और Y का मान कैसे निकाले| Puzzlerajlogic

x^2+Y^2=5

XY=2

Find X and Y value | comment Answer 

Solution:-

As we know that 

(X+y)²=x²+y²+2xy

=5+4

=9

x+y=√9

x+y=3......i

Same way we can find x-y value

(x-y)²=x²+y²-2xy

=5-2x2

=1

x-y=1....ii

Adding both equation (i) and (ii)

2x=4 (y and y cancel out)

x=2

So y=1 answer