Calculus AP
posted by jackie on .
5.2 The Natural logarithmic function
Differentiate the function
problem # 13: f(x)= sqrt(x) Inx

just use the product rule:
If y = fg
y' = f'g + fg'
y = √x lnx
y' = 1/2√x lnx + √x/x
= 1/√x (lnx/2 + 1)