Mathematics - 8 June 2006

arctanx(secx+tanx)dx

2006-06-08 23:49:13 · 3 answers · asked by javadbeh 1

A set X is said to be countable if the function f : N --> X is onto, where N is the set of natural numbers. An odd number M is said to be perfect if M is equal to the sum of its positive proper divisors (that is, including 1 but excluding M itself). An odd perfect number, according to an age-old result by Euler, has to have the form (p^k)(m^2), where gcd(p, m) = gcd(p^k, m^2) = 1 and p is congruent to k and also congruent to 1 modulo 4. If one exists, then an odd perfect number must be at least 10^500 (www.oddperfect.org), must have at least 9 distinct prime factors (Nielsen 2006) and must be a sum of two squares (Stuyvaert 1896).

2006-06-08 22:50:50 · 9 answers · asked by JoseABDris 2

2006-06-08 21:59:06 · 10 answers · asked by sanju 1

2006-06-08 20:30:56 · 26 answers · asked by brainless 1

m=mass, x=expansion. M is directly proportional to X

2006-06-08 19:40:59 · 9 answers · asked by Anonymous

2006-06-08 19:27:26 · 6 answers · asked by Anonymous

When is the beginning of the new millennium? Some say it is January 1, 2000 and others January 1, 2001? Who is correct?

2006-06-08 19:18:41 · 9 answers · asked by Anonymous

2006-06-08 19:14:48 · 8 answers · asked by wadapav_1205 1

2006-06-08 19:13:58 · 3 answers · asked by the_guy_with_the_thing 2

who's more stupid here. I think i am because I waste a lot of time posting crap here. however you get some points.

well I guess this yahoo answers if so fun.
this really mekes me laugh

2006-06-08 19:05:41 · 30 answers · asked by timewaster 1

2006-06-08 18:57:49 · 10 answers · asked by bjsukenik 1

2006-06-08 18:46:46 · 22 answers · asked by scorpiondevil1028 1

Can someone please help me with a math problem I have. Please show how you got the answer. Thanks

2........T - 1
---- = -------
3T........T

2006-06-08 17:47:46 · 9 answers · asked by Jes 3

explain

2006-06-08 17:33:38 · 3 answers · asked by sweetgurl 1

what is :-

10.5 * 3.5 = ???

2006-06-08 16:51:03 · 25 answers · asked by ♥ Heart Beats ♥ 2

2006-06-08 16:34:08 · 6 answers · asked by Anonymous

Solve: X^3-3X^2-2X-1=0

2006-06-08 15:53:16 · 6 answers · asked by alex 1

I have 2 paradoxes involving the formula e^(i*pi) = -1
-1 = e^(i*pi) taking the natural log of both sides gives
ln(-1) =i *pi. Now for the paradox
0 =ln(1) = ln( (-1^2) ) =2*ln(-1) = 2*i*pi
So that means 0 =2*i*pi
Dividing both sides by 2*pi gives
0 =i


Second Paradox
e^(i*pi) = -1 Take the reciprocal of both sides gives
e^(-i*pi = -1
Therefore, e^(i*pi) = e(-i*pi)
Take the natural log of both sides gives
i*pi = -i*pi
Dividing by i*pi gives
1 =-1

2006-06-08 15:00:28 · 4 answers · asked by PC_Load_Letter 4

The vertices of quadrilateral DEFG are D(3,2) E(7,4) F(9,8) and G(5,6).

a) Prove DF and GE bisect each other
b) DEFG is a rhombus

2006-06-08 14:52:03 · 3 answers · asked by alex 1

Express csc0 sin0 cos0 as a single trignonmetric funtion. (0 is tetha)

2006-06-08 14:44:46 · 2 answers · asked by Haya 1

2006-06-08 14:42:00 · 3 answers · asked by northstardaycare 1

can u please convert 5 ft 10 in. into centimetres?

2006-06-08 14:27:54 · 7 answers · asked by idiotmatt2000 1

An ice cream cone manufacturer makes cones with a bottom angle of 30º. The sides of the cones are 14 cm long. Determine the diameter of the cones.

2006-06-08 14:19:23 · 7 answers · asked by idiotmatt2000 1

'Cos i can. I wonder how many other people can?

2006-06-08 14:15:48 · 13 answers · asked by Grant H 2

let in on the secret about the coordinate plane
in pre-algebra.

2006-06-08 14:15:05 · 5 answers · asked by carmike_dogs 1

First person to answer correctly will get the best answer points.

2006-06-08 14:11:24 · 3 answers · asked by thecueballkid 1

Prove that there are no nonzero integers x, y, & z such that x^n+y^n=z^n where n is an integer greater than two.

2006-06-08 14:05:00 · 4 answers · asked by Grant H 2

2006-06-08 14:02:53 · 6 answers · asked by axl_32779 1

2006-06-08 13:41:12 · 4 answers · asked by BUBBA 1

2006-06-08 13:30:52 · 10 answers · asked by dsgc05™ 6