Mathematics - 7 October 2006

I hate algebra. Analysis is way better. It's fun and interesting, while algebra is boring and painful (even though it's easier). Anyone else agree?

2006-10-07 22:23:49 · 10 answers · asked by john 3

What will be the sum of this progression
1 + a^(2) + a^(4) + a^(6) + ........ + a^(n-2).Here "n" is an even integer.

2006-10-07 21:27:31 · 5 answers · asked by rajesh bhowmick 2

I want to know the sum of this progression
1 + a^(2) + a^(4 + a^(6) + ......... + a^(n-2).Here "n" is an even integer.

2006-10-07 21:05:49 · 5 answers · asked by rajesh bhowmick 2

2006-10-07 20:43:36 · 6 answers · asked by Anonymous

2006-10-07 20:40:34 · 8 answers · asked by Anonymous

Hint: Second order linear equation..
Comment: Not a great problem!!

2006-10-07 20:25:00 · 8 answers · asked by debasish2000 1

Theorem: 3=4
Proof:

Suppose:
a + b = c

This can also be written as:
4a - 3a + 4b - 3b = 4c - 3c

After reorganizing:
4a + 4b - 4c = 3a + 3b - 3c

Take the constants out of the brackets:
4 * (a+b-c) = 3 * (a+b-c)

Remove the same term left and right:
4 = 3

2006-10-07 20:14:15 · 14 answers · asked by Anonymous

Hint: Use Clairaut's Equational form
Comment: Please don't think me as a student.. I'm a Post graduate in Management (Graduate in terms of US educational system) with Economics and Mathematics as my background subjects.. I give these problems for refreshing my brain in the weekends after a long week of monotonous office job as well as to know many things from you also... Exchange of ideas what I mean.
:)

2006-10-07 20:12:19 · 3 answers · asked by debasish2000 1

I'm currently taking Geometry in 8th grade. (I skipped PreAlgebra)

Since the beginning of school, I took 4 tests so far.

When I test with the other subjects (History, English, and Science) I do really well, but math is the only problem I have...

Yet every math test I took, I knew how to do the math, but I always end up making little mistakes (as my math teacher tells me). And everytime I get the test back, I would always go Grr! I knew how to do this!

Anyone have any tips for math test taking?

I'm always the 2nd-to-last/last person to finish... & I'm always nervous while taking the math tests and everyone in my class is very competitive (so that doesn't help). Plus everyone exspects me to be SUPER intelligent and I don't want to disappoint anyone, but I recently have (because of my math grade). This was the first time I had ever disappointed my parents..

This has been troubling me for 2 weeks already :( and I can't stop worrying if I'm going to fail the next test too

2006-10-07 19:49:38 · 16 answers · asked by Royale 3

How long, in seconds, does it take an automobile traveling 50.0 km/h to become even with a car that is traveling in another lane at 40.0 km/h if the cars' front bumpers are initially 122 m apart?

2006-10-07 19:33:43 · 3 answers · asked by Fanjame 1

a) 4ft, b) 32ft,c)9ft, d)8ft?

and also an angle x measure 39 degrees more than angle y. translate into symbols.

2006-10-07 19:30:14 · 10 answers · asked by gladdo19 1

2(7x)=-70
is it -5?

2006-10-07 19:19:56 · 11 answers · asked by gladdo19 1

2006-10-07 19:05:42 · 5 answers · asked by Anonymous

please help

2006-10-07 18:59:35 · 5 answers · asked by daaznone90 2

i'm clueless to this question. someone help please...

2006-10-07 18:56:31 · 11 answers · asked by gladdo19 1

2006-10-07 18:32:48 · 4 answers · asked by aprillove0424 1

2006-10-07 18:21:16 · 3 answers · asked by Gum Yu Lo 1

2006-10-07 18:09:44 · 8 answers · asked by sti2_19 1

Chemical fertilizers usually contain nitrogen (N), phosphorus (P), and potassium (K). The amount of nutrients present is expressed as a percent of the total mass of the fertilizer in the three-term ratio, N: P: K. The amount of nutrients in the three 10kg bags of fertilizer A, B, and C is 6: 12: 22, 14: 5: 9 and 21: 7: 7 reapectively. a) Which fertilizer contains the most nitrogen? and b) Which fertilizer has the greatest ratio of N: K?

2006-10-07 18:08:37 · 8 answers · asked by SET 1

So basically, I am stuck on another problem..if my notation is unclear, I'll try to explain it w/ words.
integral of x divided by 1 - x^2 + sqrt of (1-x^2)

2006-10-07 17:59:10 · 4 answers · asked by mathstinks 1

In mathematical full form please.

2006-10-07 17:47:42 · 9 answers · asked by robbyn_bunny 1

2006-10-07 17:33:10 · 7 answers · asked by Anonymous

(p^-5)^-9 (p^-6)^4
______________
(p^-8)^0 (p^4)^-5

2006-10-07 17:09:51 · 5 answers · asked by Anonymous

-13+20
-29+14
-5+5
84+(-18)
5.7+(-3.2)

2006-10-07 17:06:30 · 10 answers · asked by Anonymous

I thought I knew how to do it..but I guess not. I tried using u = 1+e^x but I'm sooo confused.

2006-10-07 16:53:05 · 4 answers · asked by mathstinks 1

I believe it allowed you to go up to 34, or thereabouts.

2006-10-07 16:29:30 · 6 answers · asked by xfate_and_faithx 2

I have a vacuum that moves 200cfm of air at a pressure of 1.842psi through a tube 1.5in. in diameter. I need to know how much air it will move and how much of a pressure drop will I have if I switched to a 4 or 6in. diameter tube.

2006-10-07 16:27:41 · 3 answers · asked by spoonman240 1

When shown the graph of f(x), how can u sketch the graph of f'(x), if u aren't given the equation of f(x)?

I know how to find the zeros, and where it is increasing and decreasing, but how can u find certain points?

2006-10-07 16:26:19 · 5 answers · asked by Anonymous

The limit as x→-∞ of (x + the square root of (x^2 + 2x)). I have to solve it algebraically. I keep getting DNE but when I graph it, the answer looks like it should be -1. Can you please show detailed work on how to do this problem or a similar one. Here's what I've tried but obviously something is wrong: *sq stands for square root of---
x + sq(x^2 + 2x) * (x – sq(x^2 +2x))
--------------------------------------------
1* ((x – sq(x^2 +2x))

x^2 – (x^2+2x)
------------------
x – sq(x^2 +2x)

-2x / x
-----------
(x-sq(x^2 + 2x))/x

-2
-----
1-sq(1-(2x^-.5))

I took the limits of each part to get:

-2
----
1-sq(1-0)

-2
----
0

DNE

It might be easiest to write this out on paper first because I couldn't type alll the mathamatical symbles -Thanks

2006-10-07 16:19:24 · 2 answers · asked by jazzyrhythms 3

2006-10-07 15:59:20 · 18 answers · asked by nicky 2