# Thread: Kirby Math Questions Of the Week #3

1. ## Kirby Math Questions Of the Week #3

Ill go one at a time here

lim x -> 0

(e^(2x) - 1) / e^(x)-1

yeah I have no idea how to do this without stuff I shouldn't know

2. -1

3. explain

4. also wrong :I

5. 2

it's a simple thing when you learn it, l'hopital's rule. if you have a limit where when you plug in the value its 0/0 or infinity/infinity, take the individual derivatives of the top and bottom until you get something not undefined

6. Originally Posted by Kirby
also wrong :I
eh shrug

7. 69

8. Im not suppose to know that yet God. If I do that on a test that isn't the right work for the answer. Its like those kids in elementary school that could multiply large numbers in their head, but still needed to write down the organized process.

9. I thought you meant (e^(2x) - 1) / e^(x)) * -1 for some reason

10. use the squeeze theorem. take something like 10000000000x^2 + 2 and -100000000000x^2 + 2. they're going to be strictly above and below your function respective on, say (-1, -1), and both their limits at 0 are 2. this your function also tends to 2 at 0 since its continuous.

11. i mean, that's a proof moreso a method to find the answer. but you could always just find the answer for yourself with l'hopital and make yourself appropriate functions to justify your answer with the squeeze theorem on the test

12. thats really simple calculus........
Its the top / the bottom cofficient wise when something= impossible numbers
So 2x/x or 2.
How do you not know this yet?

13. great theorem bro

14. Originally Posted by ElijahWyatt
thats really simple calculus........
Its the top / the bottom cofficient wise when something= impossible numbers
So 2x/x or 2.
How do you not know this yet?
exponents arent coefficients.

oh also. just factor the top expression. (e^x + 1)(e^x - 1). this is probably how you're expected to do it. i always do something more convoluted than necessarily with stuff like this.

15. God your avatar reminds me a lot of my math teacher:

16. Kirby the Racist

17. Yeah I can never spot the difference between the Japanese and Chinese races.

18. Originally Posted by Kirby
explain

19. Originally Posted by Kirby
Yeah I can never spot the difference between the Japanese and Chinese races.
Pretty sure the guy in God's avatar is Korean

20. Originally Posted by Kirby
Yeah I can never spot the difference between the Japanese and Chinese races.
Facial structure and skin tone for two things...

21. The Japanese were business suits, and the Chinese have pony tails

22. Is it just me and my asian fetish, or does the one is the middle look very well drawn?

#### Posting Permissions

• You may not post new threads
• You may not post replies
• You may not post attachments
• You may not edit your posts
•