# Math Disscussion

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**2** Re: Math Disscussion on Thu Mar 16, 2017 6:30 pm

#### Luxaholic

Moderator

Find the derivative

U(x)=[(x^2-3)(3x^3+1)]/(x^4-1)

Prove for 2 twice differentiable functions f and g

(fg)''=f''g+2f'g+fg''

U(x)=[(x^2-3)(3x^3+1)]/(x^4-1)

Prove for 2 twice differentiable functions f and g

(fg)''=f''g+2f'g+fg''

**4** Re: Math Disscussion on Thu Mar 16, 2017 8:56 pm

#### Yaeren

That's the LOGICAL answer. Wow, what are these 'numbers'

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**6** Re: Math Disscussion on Thu Mar 16, 2017 10:55 pm

#### Luxaholic

Moderator

its B and D since Y1(t) has a greater amplitude than Y2(t). The way that question is worded is kinda annoying lol

Last edited by Luxaholic on Thu Mar 16, 2017 11:34 pm; edited 3 times in total

**7** Re: Math Disscussion on Thu Mar 16, 2017 11:16 pm

#### Yaeren

19 times 13 is orange because Jimmy's dog doesn't wear a hat.

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**10** Re: Math Disscussion on Thu Mar 16, 2017 11:33 pm

#### Luxaholic

Moderator

No, you won't understand even if I explained it@Dapocalypse wrote:Lux I am in seventh grade and do not understand your question can you please explain.@Luxaholic wrote:Find the derivative

U(x)=[(x^2-3)(3x^3+1)]/(x^4-1)

Prove for 2 twice differentiable functions f and g

(fg)''=f''g+2f'g+fg''

**11** Re: Math Disscussion on Fri Mar 17, 2017 12:46 am

#### PureStupidity_

@Luxaholic wrote:its B and D since Y1(t) has a greater amplitude than Y2(t). The way that question is worded is kinda annoying lol

Thanks Lux

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**13** Re: Math Disscussion on Fri Mar 17, 2017 1:32 am

#### Luxaholic

Moderator

I don't know what you know so far so no, probably not. What pure posted was trigonometry. Have you taken algebra?@Dapocalypse wrote:Do you guys think you can explain calculus to me.

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**15** Re: Math Disscussion on Fri Mar 17, 2017 2:25 am

#### Luxaholic

Moderator

ok, thats like nothing, I couldn't even teach you the basics of calculus.. or even trigonometry.. lol@Dapocalypse wrote:I have basic algebra knowledge

Most advanced thing I know

(2x+5)+(6x-18)=3x+5

8x-13=3x+5

8x=3x+18

5x=18

x=3.6

**16** Re: Math Disscussion on Fri Mar 17, 2017 2:41 am

#### PureStupidity_

I have to re learn box and whisker plots at the moment. Fun

**17** Re: Math Disscussion on Fri Mar 17, 2017 2:50 am

#### Infomercial_10

You need help with finding x in an equation? how can anyone need help with that.

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**20** Re: Math Disscussion on Fri Mar 17, 2017 1:39 pm

#### Yaeren

omg imma die next year... I got to do algebra D=

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**22** Re: Math Disscussion on Fri Mar 17, 2017 9:17 pm

#### PureStupidity_

I am ok with that Devji xD.

And Yaeren, Algebra will be fine!

And Yaeren, Algebra will be fine!

**23** Re: Math Disscussion on Fri Mar 17, 2017 11:13 pm

#### Yaeren

thanks pure. Too bad I'm a right-minded math-hater who can't do 9+11 without concentration

**24** Re: Math Disscussion on Fri Mar 17, 2017 11:20 pm

#### Luxaholic

Moderator

algebra is easy, should have no issues.@Yaeren wrote:thanks pure. Too bad I'm a right-minded math-hater who can't do 9+11 without concentration

**25** Re: Math Disscussion on Fri Mar 17, 2017 11:42 pm

#### Yaeren

really? It's like EASY? Is it easier than long multiplication... Wow I hate long multiplication

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