## Derivations

$\frac{d[R]}{dt}=-k[R]; \ln [R]=-kt + \ln [R]_{0}; t_{\frac{1}{2}}=\frac{0.693}{k}$

DamianW
Posts: 35
Joined: Fri Sep 29, 2017 7:06 am

### Derivations

Is there a good chance we may have to derive a formula on this weeks test?

Abigail Yap 2K
Posts: 51
Joined: Fri Sep 29, 2017 7:07 am

### Re: Derivations

Hello,

So far, Dr. Lavelle has never asked for derivations on our exams, so I do not expect that he will for this week's test.

Nishma Chakraborty 1J
Posts: 51
Joined: Fri Sep 29, 2017 7:04 am

### Re: Derivations

My TA did mention that derivations were technically fair game (at least for the final)

Minie 1G
Posts: 63
Joined: Fri Sep 29, 2017 7:04 am

### Re: Derivations

Also, as general comprehension of formulas, we should know the theory behind where they came from.

Yea Eun Lee 1H
Posts: 33
Joined: Fri Sep 29, 2017 7:06 am

### Re: Derivations

My TA also mentioned that it's fair game for derivations to appear on the final exam. However, if I were you, I'd focus on other concepts first and when there's time left, look over the derivations. Remembering the derivations will also help you understand the equations better

Kevin Ru 1D
Posts: 50
Joined: Thu Jul 13, 2017 3:00 am

### Re: Derivations

I think that there is possibility that we will be asked to derive on not just the final, but the quiz as well.

Varsha Sivaganesh 1A
Posts: 51
Joined: Thu Jul 13, 2017 3:00 am

### Re: Derivations

I feel like since the tests are usually more straightforward than midterms and finals, we probably won't have to derive an equation. However, Dr. Lavelle did spend a lot of time going over the derivations in class so I guess it wouldn't hurt knowing how to do them just in case!