(x+y)2 + (y+z)2 =
1.x2+y2+z2+2xy+4yz
2.x2+y2+z2+4xy+2yz
3.x2+2y2+z2+2y(x+z)
4.x2+2y2+z2+2x(y+z)
Answer:3
Posted Date:-2021-09-20 02:45:14