Using implicit differentiation and the product rule:
I'm really missed some fundamentals from my lectures on this. I have a video tutorial I think I will watch before I fire some questions back, if that's ok.
In the meantime: I just bought mathtype so I can put my workings in Latex for easy comprehension, and managed to create the problem in the program. But how do I get it into this window without uploading an image file?
Hello, stealthmaths!
Sorry, I can't follow your work . . .
If find an expression for
First, I would divide by 4: .
Then I would expand: .
Differentiate implicitly: .
. . . .Rearrange terms: . . . .
. . . . . . . . . . .Factor: . . . . .
. . . . . . . . Therefore: . . . . . . . . . . .