Please see attached.
Follow Math Help Forum on Facebook and Google+
a)
b) Form the fundamental theorem of calculus: , so: . RonL
c) is increasing from at untill from where it decreases to at . Hence the mininmum of is which occures when RonL
d) x=1 is the only point of inflection the second derivative is positive to the left of the point and negative to the right. At no other point is there a change of sign of the second derivative and so there are no other points of inflection. RonL
View Tag Cloud