①複合函式鏈導法則:f(g(x))‘=f’(g(x))g‘(x)頭條萊垍令f(x)=sinx,g(x)=2x,代入上述法則條萊垍頭y’=(sin2x)‘=sin’(2x)(2x)‘=cos2x*2萊垍頭條=2cos2x萊垍頭條②複合函式鏈導...