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Math Help - Basic algebra question...

  1. #1
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    Basic algebra question...

    ... that I forgot how to do. -_-

    In the equation

    -dsin35 = -4.9(dcos35/25)^2,

    is it (d^2 x cos35^35)? or simply (dcos35)^2?

    thanks in advance
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  2. #2
    MHF Contributor Also sprach Zarathustra's Avatar
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    What?!
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  3. #3
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    Quote Originally Posted by qswdefrg View Post
    -4.9(dcos35/25)^2,


    \displaystyle -4.9\left(\frac{d\cos (35)}{25}\right)^2 = \frac{-4.9d^2\cos^2 (35)}{25^2} = \frac{-4.9d^2\cos (35)\times \cos (35)}{25^2}
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  4. #4
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    thanks so much! :')
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