Here's the question you clicked on:
swin2013
Find dy/dx
sin(xy) =2x+5 through Implicity
How much do you know or are able to do?
@swin2013 do you plan on answering me or do you not want my help?
i had to attend to other businesses. cos(xy) *(y+x*dy/dx) = 2
Correct! So you do know! Now solve for dy/dx.
ok... i did it right. i thought i did it wrong lol
Yes you differentiated correctly but now you should express dy/dx in term s of x and y. In other words, isolate dy/dx.
i got 2 - cosxy *y / -x = dy/dx
No, if\[(y +x \frac{ dy }{ dx })\cos (xy)=2\]then\[y \cos (xy)+x \cos (xy)\frac{ dy }{ dx }=2\] \[x \cos (xy)\frac{ dy }{ dx }=2-y \cos (xy)\] \[\frac{ dy }{ dx }=\frac{ 2-\cos (xy) }{ x \cos (xy) }\]
OH you distributed. ok i gotcha