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C3 DIFFERENTIATION help pls watch

1. I used the product rule but the mark scheme has an answer with the v^2 part on the bottom of the fraction like in the quotient rule and I thought you'd just use the product rule since you can just take the denominator to the top with a negative power??
2. Yes you can - but if you have had trouble doing it this way, try quotient rule on that question rather than bringing it up.
3. (Original post by Uni12345678)
I used the product rule but the mark scheme has an answer with the v^2 part on the bottom of the fraction like in the quotient rule and I thought you'd just use the product rule since you can just take the denominator to the top with a negative power??
Might as well just use the quotient rule where possible, seems easier imo.
4. (Original post by Yusufff)
Yes you can - but if you have had trouble doing it this way, tru quotient rule on that question rather than bringing it up.
The mark scheme seems to use a combination of both, I shall put a picture of it

Wait sorry I understand it now.... I was being a little stupid pls excuse me haha
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