# Calculus

posted by
**sh**
.

Find the first and second derivatives of the given functions.

y=¡î(x©÷+1)

y'=x(x©÷+1)^(-1/2)

y"=[1(x©÷+1)^(-1/2)]-[(1/2)[(x©÷+1)^(-3/2)](2x)(x)]

y"=[(x©÷+1)^(-1/2)]-[(x©÷)(x©÷+1)^(-3/2)]

Is the second derivative right?