Calculate the gradient of the tangent to the curve at

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- Feb 10th 2010, 05:15 AMPunchDifferentiation- Quotient Rule
Calculate the gradient of the tangent to the curve at

- Feb 10th 2010, 05:31 AMdanielomalmsteen
If your question is to calculate the derivative of the function here is step by step

The derivate of is calculated using the chain rule

can now conclude - Feb 10th 2010, 05:50 AMHallsofIvy
Since you will need to use the chain rule on the square root anyway, you might find it easier to do this as and use the product rule rather than the quotient rule.

- Feb 11th 2010, 06:21 AMPunch
Thanks to both of you with your reply, I will try it out!!

- Feb 11th 2010, 08:05 AMPunch
- Feb 11th 2010, 07:38 PMPunch
Hello! Just a little update on my workings...

Quote:

Calculate the gradient of the tangent to the curve at

I can't simplify further. Am I on the right track?