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Math Help - Inconsistency in derivative problems

  1. #1
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    Arrow Inconsistency in derivative problems

    http://i41.tinypic.com/x21hjo.jpg

    ^^It's all in there...it has to do with parentheses placement.

    Thanks!
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  2. #2
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    Quote Originally Posted by janedoe View Post
    http://i41.tinypic.com/x21hjo.jpg

    ^^It's all in there...it has to do with parentheses placement.

    Thanks!
    I think it depends on the placement of the power. The usual convention is

    \sin^2x = \left(\sin x\right)^2 and \sin x^2 = \sin \left( x^2\right)
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  3. #3
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    ahh thank you! that's all i needed to know :]
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