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Differentiation-evaluate
Can someone do this problem for me in stages as it's from a previous years course test and the answers haven't been posted and I'm not confident with what I am doing
If x + y^2 + sin y = 1,
evaluate dy/dx as a function of y and show that
d2y= − 2 − sin y
dx2 (2y + cos y)3
Thx
If x + y^2 + sin y = 1,
evaluate dy/dx as a function of y and show that
d2y= − 2 − sin y
dx2 (2y + cos y)3
Thx
You should post this in the maths forum 
For the first part, you should rearrange the original equation so you have x in terms of y, differentiate it with respect to y and then use the fact that .
I'll have a look at the second part, I think you're going to have to use some nifty chain-ruling.
For the first part, you should rearrange the original equation so you have x in terms of y, differentiate it with respect to y and then use the fact that .
I'll have a look at the second part, I think you're going to have to use some nifty chain-ruling.
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