Recent content by marc_2094

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    Derivative using Logarithmic Differentiation

    Can you please help me find out what I did wrong?
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    Derivative using Logarithmic Differentiation

    Homework Statement http://www.flickr.com/photos/50468243@N02/8577233960/ Homework Equations The Attempt at a Solution In the pic, the noticeable difference between my answer and Wolframalpha's is the tan[log(sin x+1) to base 5]. If I do logarithmic differentiation, what I get is...
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    Gravitational Potential Energy Problem

    This is my diagram. Is it correct?
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    Gravitational Potential Energy Problem

    Homework Statement A simple pendulum is swinging. Its mass is m and its length is L. What is its gravitational potential energy if it is oriented at 30° with respect to the vertical? (Let gravitational potential energy be zero if it is in the vertical orientation). Homework Equations U =...