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    Hi, i'm doing Core 3 Edexcel but am finding it quite tough. So i decided to look at some solomon worksheets from phyicsandmathstutor.com, as there are only so many past paper q's.

    My question is how do you work out question 2 from this sheet:

    https://4738aa85dc81f6cb672cd1f6a998...0Questions.pdf

    It says do this without a calculator, but I'm not sure how to go about this. I know the answer to 2a is 4, but i don't know why. How do you go about doing the rest of Q2?

    Also, do you think its worth looking at these worksheets or only doing exam q's? Feeling a bit overwhelmed about core 3 maths, and a little worried as I didn't do as well as i would have hoped in core 2 last year :s
    Thanks for any help
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    Since the natural log has base e, e^ln x is x . That being said, since x in 2a is 4, answer is 4. Try this approach for the rest. But, keep in mind that
    1/2 ln x = ln (sqrt x)
    1/3 ln x = ln(cuberoot x)
    2ln x = ln (x^2)
    yln x = ln (x^y)

    These questions are good for skill building and strengthening concepts but I advise you to attempt harder questions too as the paper will never ask such direct questions
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    (Original post by Vortex98)
    Since the natural log has base e, e^ln x is x . That being said, since x in 2a is 4, answer is 4. Try this approach for the rest. But, keep in mind that
    1/2 ln x = ln (sqrt x)
    1/3 ln x = ln(cuberoot x)
    2ln x = ln (x^2)
    yln x = ln (x^y)

    These questions are good for skill building and strengthening concepts but I advise you to attempt harder questions too as the paper will never ask such direct questions
    Thanks!
 
 
 
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