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# Differentiation A2 Watch

1. Attachment 587308

I got the first part but how do you do the second part(hence)?? How is it related?
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2. (Original post by TheAlphaParticle)

I got the first part but how do you do the second part(hence)?? How is it related?
Product rule, you have already shown one of the differentials required in it.
3. (Original post by RDKGames)
Product rule, you have already shown one of the differentials required in it.
OHHH thanks!!
4. (Original post by TheAlphaParticle)
Attachment 587308

I got the first part but how do you do the second part(hence)?? How is it related?
Product rule! dy/dx = (u * dv/dx) + (v * du/dx)
5. If you want to really be able to make sure you have your differentiation concepts done try the rates of change questions, I personally like solving them cause they're quite different.
Product rule! dy/dx = (u * dv/dx) + (v * du/dx)
The thing is this whole exercise was about the quotient rule, so it kinda threw me off and i didn't even think about the product rule!
7. (Original post by TheAlphaParticle)
The thing is this whole exercise was about the quotient rule, so it kinda threw me off and i didn't even think about the product rule!
That's quite strange.
8. (Original post by TheAlphaParticle)
The thing is this whole exercise was about the quotient rule, so it kinda threw me off and i didn't even think about the product rule!
Quotient rule is a special case of product rule.

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Updated: October 17, 2016
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