求导 y=(3次根号下x)* (1-cosx)

问题描述:

求导 y=(3次根号下x)* (1-cosx)

∵y=x^(1/3)*(1-cosx)
∴y'=(x^(1/3))'*(1-cosx)+x^(1/3)*(1-cosx)'
=(1-cosx)/(3x^(2/3))+x^(1/3)*sinx.