Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#51 Re: Help Me ! » Algebra Question: Help Needed! » 2007-03-05 12:32:23

Isn't it possible to have cubic factors as well?

#53 Help Me ! » Algebra Question: Help Needed! » 2007-03-05 03:26:53

freddogtgj
Replies: 4

This is the question i have:

Let F = {0,1} denote the field of integers mod 2.
Show that the polynomial x^3+x+1 is irreducible over F.
Hence construct a field with eight elements. (You should write down the addition
and multiplication tables of your field.)

Could someone help me on this?

#54 Help Me ! » help needed » 2007-02-28 01:34:16

freddogtgj
Replies: 21

Find all solutions of the equation x^2 = 2 (a) in Z17; (b) in Z19.

Any ideas?

#55 Re: Help Me ! » Algebra Help Needed Please » 2007-02-27 10:21:51

Good point, but that is the question i have a fair idea of what to do with integers but i was stumped when i read this... so any idea?

#56 Help Me ! » Algebra Help Needed Please » 2007-02-27 09:37:48

freddogtgj
Replies: 2

The question I have is this:

In Z13, calculate 2/3+3/5.

*Z being the symbol for integer and 13 is the subscript to it

Thanks in advance!!!

#57 Re: Help Me ! » Converge/Diverge » 2007-02-26 09:21:39

thanks people for the help!

#58 Help Me ! » Converge/Diverge » 2007-02-21 09:20:52

freddogtgj
Replies: 24

Could someone quickly explain what converge and diverge are please?

Thanks

#59 Re: Help Me ! » Integrating » 2007-01-28 07:23:49

Don't worry people figured it out!

#61 Help Me ! » Integrating » 2007-01-28 01:17:29

freddogtgj
Replies: 1

How do i integrate the following differential equation using the condition y(0) = 1?

y'= (y^2 + 1)/y

#63 Re: Help Me ! » Factorising Polynomials » 2007-01-25 23:48:24

Ricky could you explain to me how I get those complex roots please?

#64 Re: Help Me ! » Factorising Polynomials » 2007-01-23 09:11:13

i assumed you would use complex numbers...am i right?

#65 Help Me ! » Factorising Polynomials » 2007-01-20 05:32:39

freddogtgj
Replies: 7

Hey could someone help me in this question?

Factorise the polynomial x^4 + 4 into two quadratics with real coefficients.

I have the answer from a Maths software package but i'm not too sure how the answer has come about.

(x^2-2*x+2)*(x^2+2*x+2)

#66 Help Me ! » Probability » 2006-12-02 10:04:16

freddogtgj
Replies: 1

I really need some help in figuring out what type of distribution the following are

i)The number of games played by a football team up to and including its first win,
assuming that there is a probability 1/3 that it wins each game independent of results
in other games.

ii) The number of sixes occurring when 7 standard fair dice are rolled.

iii) The number of marks you score on a single question on an Essential Mathematical
Skills exam which you do not know the answer to.

iv) The total number of marks you score on an Essential Mathematical Skills exam if
you do not know the answer to any of the questions.

Plus, how would i work out the E(x) and Var(x)?
Thanks!!

Board footer

Powered by FluxBB