Question

Derivatives
see below:

Answer 1

only part C..

Answer 2

@Psymon

Answer 3

Holy hell O.o Never seen a double abs value.

Answer 4

LOL, do you know how to do it?

Answer 5

Ill see if I do in a minute xD

Answer 6

Im not sure if I ever had to learn derivatives of abs values, but I guess you do/

Answer 7

I know how to find the derivative but my problem is the interval:c

Answer 8

Are they teaching you the (sign) function? Or are they having you do something else?

Answer 9

"Are they teaching you the (sign) function?" what do you mean?

Answer 10

Well, theres a function name for what happens when you take the derivative of an abs value. Like sign(x) = x/|x|
Not that I ever learned them much, I just know what they are.

Answer 11

I'm not sure what exactly you're asking, my teacher just discussed about the constant function rule,power rule, constant multiple rule, sum and difference rule. that's it..

I already learned other rules last summer..what I know about absolute value is I always need to broke it into pieces, something like that (because what ever I put in the abs notation, output is always positive).

this is what I did in my solution, this time it's four pieces because it's double absolute value..

Answer 12

did i answer your question?? O.0

Answer 13

Okay, nvm then, lol. Basically the derivative of |x| is sign(x), so I wasnt sure if you were having to do anything with that O.o But yeah, im not sure what you do with absolute value, I dont know how youd differentiate it, I was never taught it. All I ever had to know was |x| becomes x/|x| = sign(x)

Answer 14

brb..

Answer 15

Haha, this is quite the ridiculous derivative.

Answer 16

ok i'm back..hmm..i really don't know what is x/|x| = sign(x) ..
maybe I'll just ask my teacher tomorrow..

Answer 17

I dont think you need to know. But did you get a ridiculous answer for your derivative?

Answer 18

OMG!!! I just noticed, I posted it on PHYSICS FORUM...LOL XD

Answer 19

well I got