Mathematics - 15 December 2007

Solve for x:
1. 2xy^2 - y^2 - (1 - 3y) = x
2. x - y^2 + x(2zy^2 + 2y) = xz^2 + z

These are really impossble for me to figure out. I keep getting stuck on both of these problems. For #1, I set one side equal to zero but I got stuck on the fourth line. For #2, I again set one side equal to zero but could not factor the expression on one side.

Thanks for the help in advance! :)

2007-12-15 12:03:10 · 5 answers · asked by A V 2

solve the following:(i) 4 sin2X( sinX-1)=0
ii) sin2X =-1

2007-12-15 11:46:28 · 4 answers · asked by D R 1

how do you find a general quadratic function g(x) whose derivative g'(x)=5x+7?

2007-12-15 11:44:43 · 10 answers · asked by Haya 1

Find the distance and slope
(5, -4) and (-1, 1)

Find maximum or minimum of the function
y= 3-5x +x^2

2007-12-15 11:44:07 · 5 answers · asked by jamie d 2

If the average person drinks 8, (8oz) glasses of water per day, a person who drinks 12.8 oz of water after a morning exercise session has consumed what fraction of the daily average?

2007-12-15 11:40:00 · 19 answers · asked by sunmoonstars12345 1

Find the coordinates of the foci- How did you get it?


X^2/36 + x^2/9 = 1

2007-12-15 11:33:18 · 1 answers · asked by Anonymous

Some guys write in html code( i guess) some math symbols like existence sign. Why my computer does not display them?

2007-12-15 11:28:18 · 3 answers · asked by Theta40 7

problem:
consider the function y(x), given by
y(x)=summation (0 to infiniti) [x^(2n)]/(1-2n)

find a power series expansion of (integral symbol) y(x) dx

so far i have...
y(x) = ∑ [x^(2n)] / (1-2n)...........n=0 to infinity

y(x) = 1 + [ (x^2) / (-1) ] + [ (x^4) / (-3) ] + [ (x^6) / (-5) ] + ...

= 1 - (x^2) - (1/3)*(x^4) - (1/5)*(x^6) - . . .

∫ y(x) dx = x - [ (x^3) / 3 ] - [ (x^5) / (3*5) ] - [ (x^7) / (5*7) ] - . . .

my problem is that i can't find the shorthand sigma notation for this result and i don't know how. it's really bothering me. your help is much appreciated. thank you

2007-12-15 11:21:22 · 1 answers · asked by Tim C 1

2007-12-15 11:14:55 · 7 answers · asked by Smart_Guy 1

2007-12-15 11:01:40 · 9 answers · asked by angelazul 2

Given that m divides n, how do I find a homomorphism where phi(Z_n) = Z_m ?

2007-12-15 10:45:19 · 2 answers · asked by Randall N 1

How do I show that

phi: Z_12 ===> Z_10

defined by phi(x) = 3x is not a homomorphism?

Be as specific as you can, please. Thanks for the help!

2007-12-15 10:41:22 · 1 answers · asked by Randall N 1

Why can't there be a homomorphism from Z_16 onto Z_2 (+) Z_2?

Note: (+) means external direct product

2007-12-15 10:39:46 · 2 answers · asked by Randall N 1

Write the product as a sum: sin 50 cos 30

2007-12-15 10:39:34 · 3 answers · asked by warsane b 1

Suppose that phi is a homomorphism from Z_42 onto a group of order 6. What is the kernal of phi?

2007-12-15 10:37:53 · 1 answers · asked by Randall N 1

This is a Gr.12 Advanced Functions question?

2007-12-15 10:14:44 · 2 answers · asked by Omeed A 2

given cosu=-2/7 and pie/2

2007-12-15 10:11:31 · 2 answers · asked by warsane b 1

x^2 + y^2 = 9; y - x = 3

2007-12-15 10:08:42 · 2 answers · asked by chriskel8706 1

1. Circle
2. Ellipse
3. Hyperbola
4. None of these

2007-12-15 10:07:44 · 2 answers · asked by chriskel8706 1

1. Circle
2. Ellipse
3. Hyperbola
4. None of these

2007-12-15 10:06:21 · 2 answers · asked by Anonymous

Determine, WITHOUT GRAPHING, if the given quadratic functions have a maximum or minimum value and then find the value.

(1) f(x) = -2x^2 + 12x

(2) f(x) = 4x^2 - 8x + 3

2007-12-15 10:05:20 · 7 answers · asked by journey 1

x^3 + 5x^2 + 2x-8

Thanks!

2007-12-15 10:02:25 · 2 answers · asked by Eyepatch 2

My math: what are the factors of 568?

2007-12-15 10:01:20 · 2 answers · asked by Cowboys And Longhorns 5

If f(x)= -x^(3)+6x^(2)-9x-2, how do you find the relative minim value?

but really...i'm stuck here..how do you solve this equal to 0?

-3x^(2)+12x-9=0?

2007-12-15 09:59:17 · 2 answers · asked by remote control 1

What's 3 -i/1 + 2i?

2007-12-15 09:57:48 · 4 answers · asked by Anonymous

2 -3 -5
1 2 2
5 3 -1

2007-12-15 09:52:24 · 3 answers · asked by jared r 1

for any two numbers a and b proove abs(ab) = abs(a)*abs(b)

2007-12-15 09:50:34 · 5 answers · asked by Anonymous

using the additional formula

2007-12-15 09:48:48 · 8 answers · asked by Anonymous

the mean of 5 numbers is 27. four of the numbers are24, 33, 27, and 31.What is the fifth number?

2007-12-15 09:19:03 · 7 answers · asked by Anonymous

If the Taylor Series expansion for f(x) = ln(1+x/1-x) is:

2x + 2/3x^3 + 2/5 x^5 + 2/7 x^7...

how do I find f'''''(0)? (fifth derivative)

2007-12-15 09:14:20 · 5 answers · asked by Anonymous