Question

x square + Y square is equal to 14 and X Y is equal to 5 find the value of bracket (1 2 X + 1 by 2 y)​

Answer 1

Step-by-step explanation:

Given,x+y=12 and xy=14

   x+y=12 

Squaring both sides, we get,

   (x+y)2=122

=>x2+y2+2xy=144

=>x2+y2+2(14)=144

=>x2+y2=144−28

=>x2+y2=116