## swin2013 3 years ago find dy/dx

1. swin2013

$\sin(xy) = 2x+5$

2. baldymcgee6

|dw:1351479398654:dw|

3. baldymcgee6

differentiate implicitly.

4. swin2013

yea... i think i did it wrong. i know when there's a y present you multiply by dy/dx

5. baldymcgee6

Well, you see, we're taking the derivative with respect to x, so when we come upon a y, we just write "the derivative of y" which is dy//dx or y'

6. baldymcgee6

So what is the derivative of sin(xy)

7. swin2013

cos(xy)

8. baldymcgee6

But beacause of the chaine rule we have to multiply by the derivative of the inside.

9. baldymcgee6

|dw:1351479776831:dw|

10. swin2013

oookk i was stuck on that part, i wasn't sure if i multiplied dy/dx correctly