“微信扫一扫”进入题库练习及模拟考试
下列求导过程正确的是( )
A.\( (\frac{1}{x}{)}^{\text{'}}=\frac{1}{{x}^{2}}\)
B.\( (\mathrm{cos}x{)}^{\text{'}}=\mathrm{sin}x\)
C.\( ({2}^{x}{)}^{\text{'}}={2}^{x}\mathrm{ln}2\)
D.\( ({\mathrm{log}}_{2}x{)}^{\text{'}}=\frac{1}{x}\mathrm{ln}2\)
参考答案:C