x-y=2,x2+y2=34. Find xy

 

Asked by Channakrishnappa7 | 11th Mar, 2021, 08:44: AM

Expert Answer:

begin mathsize 16px style straight x minus straight y space equals space 2 space..... given
rightwards double arrow space open parentheses straight x minus straight y close parentheses squared equals space 4
rightwards double arrow straight x squared plus space straight y squared space minus space 2 xy space equals space 4
rightwards double arrow 34 space minus space 2 xy space equals space 4 space space..... space left parenthesis straight x squared plus space straight y squared equals 34 space.... space given right parenthesis
rightwards double arrow 30 space equals space 2 xy space
rightwards double arrow xy space equals 15 space end style

Answered by Yasmeen Khan | 11th Mar, 2021, 02:29: PM