× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
5
o
5
4
m
4
b
4
x
4
a
4
l
4
t
4
S
4
m
3
s
3
New Topic  
calcourse calcourse
wrote...
Posts: 19
Rep: 0 0
11 years ago Edited: 11 years ago, calcourse
1. find derivative of f(x) = sec(5x)

a. sec2(5x)

b. 5sec2(5x)

c. sec(5x)tan(5x)

d. 5sec(5x)tan(5x)

e. None of these.


2. find derivative of f(x)=x^3-3x/x^2
Post Merge: 11 years ago

Actually, I figured out number 1 so help on number 2 would be appreciated!
Read 368 times
1 Reply

Related Topics

Replies
wrote...
11 years ago Edited: 11 years ago, doubleu
d. 5sec(5x)tan(5x)


f(x)=x^3-3x/x^2

Change it to this:

f(x) = x3 - 3x*x-2

The only hard part is 3x*x-2, while x3 becomes 3x2. I'd assuming you using the product rule for 3x*x-2, I think.
When you like a flower, you just pluck it out.
But when you love a flower, you water it daily.
The one who understands this, understands life.

- That's the difference between I like you and I love you.
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  950 People Browsing
Related Images
  
 1039
  
 328
  
 260
Your Opinion
What's your favorite math subject?
Votes: 293

Previous poll results: How often do you eat-out per week?