Question

求函数y=√x√x√x的导数

Answer 1

y=√[x√(x*x^(1/2))]
=√[x√(x^(3/2))]
=√[x*x^(3/4)]
=√[x^(7/4)]
=x^(7/8)
所以y'=7/8*x^(-1/8)