Need Help With Math Problem!

Baldy · 2003-06-23 14:50:13

Holy crap, What are you people on. https://www.nopistons.com/forums/public/style_emoticons//post-1-1047683358.gif Math to me equals. When doing this https://www.nopistons.com/forums/public/style_emoticons//BURNOUT.gif what RPM do I need to keep so the car doesn't stall or over rev and in which gear is the best. https://www.nopistons.com/forums/public/style_emoticons//v1.gif

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Jun 24, 2003 | 02:13 PM

#51

TyresmokinRx7

Senior Member

Joined: Apr 2003

Posts: 875

From: Canberra Australia

Holy crap, What are you people on.

Math to me equals.

When doing this

what RPM do I need to keep so the car doesn't stall or over rev and in which gear is the best.

Jun 24, 2003 | 02:13 PM

#52

Leetheslacker

Senior Member

Joined: Nov 2002

Posts: 2,286

From: Cincinnati, Oh hi hoe!

Quote:

Originally Posted by TyresmokinRx7' date='Jun 24 2003, 03:13 PM

When doing this

what RPM do I need to keep so the car doesn't stall or over rev and in which gear is the best.

Thats a good use of math.

Jun 25, 2003 | 10:38 AM

#53

FrestyleFC3S

Senior Member

Joined: Apr 2003

Posts: 2,259

From: Schofield Barracks, HI

dude im lost...i dont take derivative math courses

i just knew how to add before

Jun 25, 2003 | 10:51 AM

#54

rfreeman27

Senior Member

Joined: Dec 2002

Posts: 4,107

From: fredneck MD

Quote:

Originally Posted by ROTARYROCKET7' date='Jun 24 2003, 12:40 PM

Yo freestyle reaction i got something for you. Or anyone else solve these basic math problems.

1). iight what is e raised to the natural log of x squared?

2). whats the Intergral of sin x?

3) what is the derivative of (4x sqaured + 5) squared?

4.) what is the half angle formula for cos squared x.?

These are basic ****. YEah u can look up these identities behind your math book. lol.

Yeah intergers are negative my bad but i dont consider them negative cause when ever we use intergers we never really use em with the negatives well at least in my math study. we just say non-zero or something to denote that they are all positives.

I hate imaginary numbers which are the +- of a square root..

***********BONUS*************

For all you smartees

What is the Partial Derivative of F(x,Y) = 3x^2 + xy + 2x^2y^3..

find Fx, Fy, and Fxy....

1) e??

2) donno

3)forget what a derasdiaive is

4)1+sin^2 x

If i looked through my notes i could answer every one of these. Basic Calc and Trig. But, being the lazy focker I am i dont feel like it.

Jun 25, 2003 | 10:56 AM

#55

FrestyleFC3S

Senior Member

Joined: Apr 2003

Posts: 2,259

From: Schofield Barracks, HI

someone lock this thread im tired of reading through it AHH

Jun 25, 2003 | 01:48 PM

#56

ROTARYROCKET7

Senior Member

Joined: Dec 2002

Posts: 1,687

From: QUEENS NYC

Quote:

Originally Posted by ROTARYROCKET7' date='Jun 24 2003, 08:40 AM

Answers

1) X, e raised to Ln cancels itself out so we get just X

2) - cos x, the intergral is the anit derivative and if there is no specific limit you add the constant C.

3) 16X(4x^2 + 5) raised to the one. Here we use the chain rule.

4) 1- sin ^2 x / 2

5) Fx = 6x + y + 4xy^3

Fy= x+ 6x^2y^2

Fxy= 1 + 12xy^2

If you do the problem using implicit differnetiation there is a short cut. Take the partial derivative of x divided by the partial derivative of y which is

- Fx/Fy which gives us = - 6x + y + 4xy^3 / x+ 6x^2y^2

Jun 25, 2003 | 01:52 PM

#57

ROTARYROCKET7

Senior Member

Joined: Dec 2002

Posts: 1,687

From: QUEENS NYC

wel you guys did pretty well. I assume it was a long time since u guys seen this stuff. Some is calc I , II and III. Let me not give you guys and Methods of Differential Equations using Undetermined Methods of Coefficiant, variation of parameters, Laplace Transformation, Euler Power Series, taylor Powerseries, HOmogenous and Non homogenenous Problems mixed with seperable equations, last but not least Fourier Series.