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# A2 Differntiation help Watch

1. I have attached the photo. I couldn't get to an answer I used quotient rule with product rule as well for a final answer I got 6√3.4a/4 + √3
This is the question I need differentiating.
If you could talk me through step I would be grateful.
http://postimg.org/image/d02mmaj2l/
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2. (Original post by joeheat)
I have attached the photo. I couldn't get to an answer I used quotient rule with product rule as well for a final answer I got 6√3.4a/4 + √3
This is the question I need differentiating.
If you could talk me through step I would be grateful.
http://postimg.org/image/d02mmaj2l/
This is simple term-by-term differentiation. Why on earth would you need to use the product and/or quotient rule? Each term is in the form:

where n and b are constants. Which can be directly differentiated.
3. (Original post by SamKeene)
This is simple term-by-term differentiation. Why on earth would you need to use the product and/or quotient rule? Each term is in the form:

where n and b are constants. Which can be directly differentiated.
could you talk me through it please much appreciated
4. (Original post by joeheat)
could you talk me through it please much appreciated
Well we have:

Then we do the 'ol Multiply by the power and then take one off the power for each term.

And then it's just simplifying the fractions and rationalizing them, which I'll leave for you.
5. (Original post by SamKeene)
Well we have:

Then we do the 'ol Multiply by the power and then take one off the power for each term.

And then it's just simplifying the fractions and rationalizing them, which I'll leave for you.
Thank you very much for the help much appreciated.

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