Question

find f''(x) given the following

Answer 1

\[f(x) = \int\limits_{0}^{x}t^3+6t^2+1\]

Answer 2

so I believe f'(x) = x^3+6x^2+1

Answer 3

first is
\[x^3+6x^2+1\] right?

Answer 4

right

Answer 5

so second should be just as easy

Answer 6

well I tried the following but it says its wrong (x^4/4)+2x^3+x

Answer 7

lol you are going backwards!!

Answer 8

this always happens at the end of calc
spend all semester on derivatives, and then BAM anti derivatives confuse the hell out of everyone

Answer 9

oh hahahah 3x^2 + 12x

Answer 10

yup

Answer 11

you knew that ...

Answer 12

thanks for catching that, got so use to anti derivatives.

Answer 13

hehehe cool @satellite73

Answer 14

i have seen people fail entire calc finals because they are asked for derivatives and they compute anti derivative and vice versa

Answer 15

hehe i have seen some students in my previous class doing that :)

Answer 16

well I hope I do not make that mistake again, midterms wednesday

Answer 17

good luck with the mid term!

Answer 18

hehe, just stay focused :)
best of luck to you in midterms
any help just tag ^_^

Answer 19

thanks guys

Answer 20

so what did you guys do so far
second part of FTC

Answer 21

or the second FTC some may call it hehe