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    It's question 7

    Any help would be much appreciated thank you!!

    For the first part you would need to differentiate each term by multiplying by the power then subtracting one from it. Then you would have to substitute 1 into your answer.

    For the second part, to get the second derivative, you would use your answer from the first part: the equation, then differentiate it the same was as above, then sub 1 in to get the final answer.

    And for part C they're probably looking for a comment on the accuracy of using the equation but I'm not quite sure.

    Tried to give you help without just giving the answers away
    • Thread Starter

    Thanks for the reply, I understand how to find the first and second derivative, it's just the interpreting the values in the context that I' struggling if anyone could help me with that?

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