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## #1 2013-04-09 23:56:25

Agnishom
Real Member

Online

### Differentiation

How do you differentiate the following:

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Who are you to judge everything?' -Alokananda

## #2 2013-04-10 00:27:30

zetafunc.
Guest

### Re: Differentiation

Lots of ways to approach that one -- what have you tried?

## #3 2013-04-10 00:34:43

Agnishom
Real Member

Online

### Re: Differentiation

I am a complete beginner

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Who are you to judge everything?' -Alokananda

## #4 2013-04-10 00:52:30

noelevans
Full Member

Offline

### Re: Differentiation

Try: Quotient Formula:  D(f/g) = (g*Df - f*Dg)/(g²) where  f(x)=sqrt(1-x²)^(½) and g(x) = 1-x

Also for the 1/2 power:  D[f]^n = n*[f]^(n-1) * Df.

I hope this helps.

Writing "pretty" math (two dimensional) is easier to read and grasp than LaTex (one dimensional).
LaTex is like painting on many strips of paper and then stacking them to see what picture they make.

## #5 2013-04-10 02:10:46

Agnishom
Real Member

Online

### Re: Differentiation

Hm
I guess I have to differentiate things one by one.

I figured it out but its quite boring

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Who are you to judge everything?' -Alokananda

## #6 2013-04-10 02:14:41

bobbym

Online

### Re: Differentiation

What did you get?

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #7 2013-04-10 02:22:28

Agnishom
Real Member

Online

### Re: Differentiation

I didn't. I just found how to do it.

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
'Who are you to judge everything?' -Alokananda

## #8 2013-04-10 02:30:37

bobbym

Online

### Re: Differentiation

Okay, it will be tedious at first but easier later. Post if you get stuck.

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.