作者LuisSantos (^______^)
看板trans_math
標題Re: [微分] 三角函數導數
時間Mon Jun 25 10:54:10 2007
※ 引述《tiffany9802 (Tiffany)》之銘言：
: 3x 2
: y=sin(e )cosx 的導數??
dy d d
---- = (----(sin(e^(3x))))(cos(x^2)) + (sin(e^(3x)))(----(cos(x^2)))
dx dx dx
= (3)(e^(3x))(cos(e^(3x)))(cos(x^2)) + (sin(e^(3x)))(2x)(-sin(x^2))
= (3)(e^(3x))(cos(e^(3x)))(cos(x^2)) - (2x)(sin(e^(3x)))(sin(x^2))
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