- #1
james.farrow
- 44
- 0
I have a question thus:
If (x + y)sin(xy) = 1 find dy/dx.
It looks to me as I should use the product rule.
d/dx(x + y) I get 1 + dy/dx
Now this is where it gets kinda tricky.
d/dx sin(xy) its the fuction of a function I think!
I get (eventually) cos(xy)xdy/dx + y
Now putting it all together and using the prod rule as 1st stated my final effort is
dy/dx = -y -sin(xy)/(x +y)cos(xy)x + sin(xy)
Can any shed some light on my work so far!
Cheers
Jimmy
If (x + y)sin(xy) = 1 find dy/dx.
It looks to me as I should use the product rule.
d/dx(x + y) I get 1 + dy/dx
Now this is where it gets kinda tricky.
d/dx sin(xy) its the fuction of a function I think!
I get (eventually) cos(xy)xdy/dx + y
Now putting it all together and using the prod rule as 1st stated my final effort is
dy/dx = -y -sin(xy)/(x +y)cos(xy)x + sin(xy)
Can any shed some light on my work so far!
Cheers
Jimmy