MATH C - 2.2-2.4

I Dont Get any of this stuff please help me...

Math C

2.2 -

2.3 - Inverse and Identity

2.4 - Groups

yes anees, im hoping to see a good answer here.

Hey guys

whats the problem.like specific questions and stuff plz put down what you need

liek all

2.3

5,6,9,11,12

2.4

4,5,6,7 and the rest on

Well lets start with the easy ones
2.3 Question 11 & 12

Commutive means a * b = b * a ...i.e the order of the terms dont matter

So say E is the identity element if e is right identity
that means
e * a = a
if e is left identity ...
a * e = a

anyways,,, question 11 & 12 are relatively simple

Becauase commutivity means the orders dont matter.. it doesnt matter if e is on the left or the right side.. which means the left identity is equal to the right identity

And that means.. it has 1 identity which works for everything,.. and no separate left or right inverses...

This is the same for q12 with inverses.. no right or left.. just 1 for all


[Edit with next answer is in progress so bear with me]



5)


QUESTION 9
(a,b) * (c,d) = (a,b+c+d) (FOR ALL SYMBOL) a,b,c,d (ELEMTN SYMBOL) Z

(a,b) * (-3,3) = (a,b+-3+3)
(a,b) = (a,b)
(-3,3) =E=identity

obviously from this we can tell that a,b + -N + N
Means the negative and positive Ns cancle each other out..(N can be any number)
which leaves just (a,b) and (a,b) * E = (a,b)
so (-3,3)
(-2,2) etc etc
















kk now...

6. is weird.. idk if im going about it the right way but here is what i took out of it
a^b = lowest common MULTIPLE of a and b
assume e= identity
a^e = lowest common MULTIPLE (not factor) of a and e -

a^e=a


GUYS IM GOING TO GO START MY MATHs HOMEWORK NOW

As i havnt done my homework yet i cant tell just by looking at the question about the answers.. so i am going to do it now.. i will POST A REPLY probably in a few hours... Good luck all.. cya soon

ok anees...
logon in msn?

I also need help with 2.3 - 1,2,3,4

Howdy Fellow Nerdies > ROGER


I am now trained in the arts of 2.2 2.3 and 2.4

Fire Away (let me know which questions you still havnt done... Since your posts may be outdated... P.S i am curently upto 2.4 q 9 or 10

so i may not be of any assistance for question further then that

Have a nice day

holy crap that was fast. i need help with 2.3 1 2 and 2 and 4
better keep camping here

haha

wait did u say 2.4 questiosn 1-4?

EDIT did u mean 2.3?

2.3 2.3 i hate inverses and identitys

roff im confused.. exactly which questions do u need help with

ill make a lsit

lol
2.3
1-6 (I kno wi suck)

hahaha rofl

anyways hold tight ill try answer some now on here

btw is there a place to put images into the reply

Erm maybe when u type, maybe click the pic with the save thing on/

2.3

Q1
RTP blah blah blah

Proof
! for operation sign

0!a= 0xa - 0+a
0!a = a
0 is left identity


q1 - part 2
b!a=0
0=ba-b+a
-a=ba-b
-a=b(a-1)
(-a)/()
actually nvm

i think ill just upload it with pics

takes to long to type out


btw I have some BAD news

lol k, anythings fine with me. Its hard to absorb

Bad News? what is this? Tell me

You will find out the news after i post my answers then i will tell u what the news is... btw u will need to make a poll in the aftermath of the news

EDIT NICK HOW DO I MAKE A POLL

NO I cant wait that long TAT

Any idea how to make a poll nic
?

just tell me what to write, btw have u seen proto badger?

No lol.. but my dragon in the world of the warcraft is a Proto Drake

does he look like this http://aceattorney.wikia.com/wiki/File:Kidnap.gif

omg!
THAT PROTO BADGE IS LIKE SOO OTOTALLY CUTE
KAWAII~
LOLOLOLOL
anyways
anees
help me with chapt 2.4 on maths c!