
implicit differentiation

Quote:
Originally Posted by
smguardado please help!
xy+2y=x^2
$\displaystyle xy'+y+2y'=2x$
$\displaystyle xy'+2y'=2xy$
$\displaystyle y'(x+2)=2xy$
Solve for $\displaystyle y'$

Quote:
Originally Posted by
smguardado please help!
xy+2y=x^2
Hi all
http://i69.servimg.com/u/f69/12/89/99/77/almonk14.gif

Quote:
Originally Posted by
smguardado please help!
xy+2y=x^2
hi
implicit differentiation is not necessary , you can make y the subject then use the quotient rule like what mr mohamed did .