hey .....look..............
(x+y)2=2cx:..............1
differentiating ......we get.............
2(x+y) ( 1 + dy/dx)= 2c
putting this 2c in equation 1st
we get............
(x+y)2=2cx:
(x+y)2=2 ( x+y) ( 1 + dy/dx) x
cancelling (x+y)................
we get.............
(x+y) = 2x + 2xdy/dx
y-x= 2xdy/dx.......................ans 1....................
right...................
thanku
Moderation Team
![[Post New]](/templates/default/images/icon_minipost_new.gif){kind=icon}
![[Up]](/templates/default/images/icon_up.gif "[Up]"){kind=icon}
265
