CALCULUS! PLEASE HELP URGENT!
posted by Mark on .
Which of the following functions have a derivative at x=0?
I. y= absolute value(x^3-3x^2)
II y= square root(x^2+.01)- absolute value (x-1)
III y= e^x/cosx
What is your thinking? Look to see where there are discontiuties.
I think all three of them have derivatives because when I put them into the calculator, I saw no discontinuities. but i am debating if it's II and III.
doesn't one change slope rapidly at x=0?
I think it does. For answer choice one correct?