How good are you at algebra?

2006-10-22 00:36:13

#51

mcminty: Moderating your content for the Australian Govt.; +879|7145|Sydney, Australia

Ganko_06 wrote:
Try some Calculus

Hmmm...What about:

f(x) = sin(cos(tanx))

Find f'(x)

Mcminty.

2006-10-22 00:39:34

#52

Cougar: Banned; +1,962|7188|Dallas

a+b=c right?

God I hate math. This thread is like kryptonite to me.

2006-10-22 00:45:16

#53

mcminty: Moderating your content for the Australian Govt.; +879|7145|Sydney, Australia

Cougar wrote:
a+b=c right?

God I hate math. This thread is like kryptonite to me.

a² + b² = c²

2006-10-22 00:53:23

#54

NaziPredator: Member; +41|6889|Luton -WorstTownInBritain-

don't have enough fun revisong all this week for an exam the first day back....

:s

2006-10-22 00:53:34

#55

maffiaw: ph33r me 傻逼; +40|6844|Melbourne, AUS

mcminty wrote:
Ganko_06 wrote:
Try some Calculus
Hmmm...What about:

f(x) = sin(cos(tanx))

Find f'(x)

Mcminty.

-[[sec(x)]^2]sin(tanx)cos(cos(tanx))
Am i correct?

2006-10-22 00:54:28

#56

poltirix: don't let money change you; +3|6885

maybe you should make your own homework

2006-10-22 00:56:00

#57

..teddy..jimmy: Member; +1,393|7073

eyesteponbabies wrote:
Math in general is not a subject I'm most talented in, though I do appreciate learning about cultures and communication.

WTF

2006-10-22 09:43:53

#58

munchagepeople: Member; +3|7059|Bristol, UK

Ganko_06 wrote:
Here's the correct answer:

f'(x) = {[(x+1)(ln(x+1)]²}+(x+1)(ln(x+1)+1}(x+1)^[(x+1)^(x+1)+x]

May I ask how you got to that answer? I can't see any obvious mistakes in my working, and
Maple 10 agrees with my result - is there something fundamental I've missed?

Simon

PS - I'm not accusing you of being wrong just curious about the difference in answers

2006-10-22 10:46:51

#59

ShadowFoX: I Hate Claymores; +109|6955

Here is an easy one.

Square root of -16

2006-10-22 10:48:13

#60

Naughty_Om: Im Ron Burgundy?; +355|7057|USA

ShadowFoX wrote:
Here is an easy one.

Square root of -16

Imaginary. 4i

Last edited by Naughty_Om (2006-10-22 10:49:25)

2006-10-22 11:06:00

#61

cailuc: Friendly fire isn't; +36|7043

Strange name for a girl 'Alge'. Anyway reckon her bra wont be any more difficult than any other.

2006-10-22 11:21:16

#62

ShadowFoX: I Hate Claymores; +109|6955

Naughty_Om wrote:
ShadowFoX wrote:
Here is an easy one.

Square root of -16
Imaginary. 4i

Ahh so no one did fall for that little trick. Glad to see there are some people on these forums with a noodle.

2006-10-22 13:22:47

#63

Darkhelmet: cereal killer; +233|7174|the middle of nowhere

ShadowFoX wrote:
Naughty_Om wrote:
ShadowFoX wrote:
Here is an easy one.

Square root of -16
Imaginary. 4i
Ahh so no one did fall for that little trick. Glad to see there are some people on these forums with a noodle.

?

Edit:Wait nevermind I figured it out lol. But what's 4i ?

Last edited by Darkhelmet (2006-10-22 13:23:49)

2006-10-22 13:38:14

#64

ShadowFoX: I Hate Claymores; +109|6955

In complex numbers the I stands for square root of -1 because you cant have a root of a negetive since that is imposible using real numbers.

2006-10-22 13:41:26

#65

Naughty_Om: Im Ron Burgundy?; +355|7057|USA

so...
i^1=i
i^2=-1
i^3=-i
i^4=1

BF2S Forums How good are you at algebra?

Ganko_06 wrote:

Cougar wrote:

mcminty wrote:

Ganko_06 wrote:

eyesteponbabies wrote:

Ganko_06 wrote:

ShadowFoX wrote:

Naughty_Om wrote:

ShadowFoX wrote:

ShadowFoX wrote:

Naughty_Om wrote:

ShadowFoX wrote:

Board footer