My algebra exam.

[Athena]

[QUOTE=catch33;22324230]How to show 2=1 with algebra

a = b
a^2 = ab
a^2 - b^2 = ab - b^2
[b](a+b)(a-b) = b(a-b)[/b]
(a+b) = b
a + a = a
2a = a
2 = 1[/QUOTE]

a-b = 0

edit: and even if you ignored that error the only way x*a = a could be true is of a = 0

[Rasrap Smurf]

[QUOTE=catch33;22324230]How to show 2=1 with algebra

a = b
a^2 = ab
a^2 - b^2 = ab - b^2
(a+b)(a-b) = b(a-b)
(a+b) = b
a + a = a
2a = a
2 = 1[/QUOTE]

a = b so when you divide by a - b you're dividing by 0.

Ninja

[Pepin]

[QUOTE=metallics;22320322]No, anyone that actually knows how to use maths knows that j is imaginary and i is instantaneous current.

:v:

Sorry mathematicians.[/QUOTE]

Nah, i is amps per second.

[PoloXGS]

2 does not equal 1, it never has and it never will.

[Metallics]

[QUOTE=Pepin;22324748]Nah, i is amps per second.[/QUOTE]

Uh what, no it isn't.
It's instantaneous current as I explained in my later post.
As in like, V=Ldi/dt
[editline]05:40PM[/editline]

[QUOTE=PoloXGS;22324930]2 does not equal 1, it never has and it never will.[/QUOTE]

You could define it as such if you wished, it would just be odd to define something we consider a constant normally as a variable, but 2 is technically a variable anyway, it's just one we've a assigned a constant value to, because you need something to be constant somewhere, just as most people think of pi=3.1412... you could redefine it and use it as something else, you'd just have to find another name for pi. And you'd confuse and upset a lot of people.

[Mystery Penguin]

I Got a D first semester
B second semester

I got an A on the final
B in class overall

Freshman year :D

[IamTehKings]

good luck to you sir. I choked on my geometry exam and failed stay calm

[Jakobi]

I got a 92 on my algebra 2 final.

[redback3]

Maths is easy, best of luck =)

[The Chef]

[img]http://www.funnyphotos.net.au/images/expand-a-b-n-very-funny-peter1.JPG[/img]

[Tippmann357]

I had a take home test yesterday

[IMG]http://i46.tinypic.com/szftqh.jpg[/IMG]

[Metallics]

Ahhh delicious calculus... I had an exam last Thursday where I did 14 pages of working, mostly on calculus, the rest was Laplace... ahh good old Laplace.

[B]EDIT:[/B]
Pretty sure I got most of that wrong too :v:

[Flipschtik]

[QUOTE=catch33;22324230]How to show 2=1 with algebra

a = b
a^2 = ab
a^2 - b^2 = ab - b^2
(a+b)(a-b) = b(a-b)
(a+b) = b
a + a = a
2a = a
2 = 1[/QUOTE]

If a = b then they are both either a or b. :downs:

[Downsider]

Algebra II was one of the easiest classes I've ever taken, but that may just be my school. I mean, Hell, the kids in the class are struggling to learn how to use sine/cosine/tangent functions.

[Abrown516]

My Algebra II exam is Friday. I'm gonna open my cheeks and shit on it.

And I'm a freshman

[slippp22]

great GD thread

[Relys]

I'm currently taking Calculus. Math is so easy.

Math gives you a set of rules that you can do, and doesn't tell you what you can't do.

The only things you can't do are things that would contradict the basic things you can do.

[BluFox]

The answer is C

[NoShogun]

[QUOTE=Abrown516;22329221]My Algebra II exam is Friday. I'm gonna open my cheeks and shit on it.

And I'm a freshman[/QUOTE]
I'm a freshman and my Algebra II exam was simple, too. Had it Monday.

[chugmuffin]

I have an algebra 2 exam on Friday. Please post answers. :p

[Rach Runner]

All I can offer you OP(well, all I'm willing to offer):

[media]http://www.youtube.com/watch?v=-Qae_TUTeGo[/media]

[editline]08:43PM[/editline]

By the way, if you fail this exam you're not the best around and everything can keep you down.

[Potatoes]

oh my god my alg 2 finals are tomorrow.

OP do you live in CA?

sorry.

[GoldenGnome]

x=(-b +- sqrt(b^(2)-(4ac)))/2a

factor any quadratic equation in the form of ax^2+bx+c

[EvilZx]

I loved Algebra 2, it was the easiest class I had ever taken. Everything was so simple.

Aced every single test, final, and benchmark. :smug:

[ForTehWolf...2!]

[url]http://www.regentsprep.org/Regents/math/algtrig/math-algtrig.htm[/url]

I use this because i'm in NYS, were we take regents, but i'm sure it'll help in your final

[gerbile4]

[QUOTE=Luuper;22321474]Algebra 2 is Year 11 right?[/QUOTE]

I took alg 2 in year 9 of school, or ninth grade

[Luuper]

I took algebra 2 in ninth grade as well

Shit was easy

[MRTW113]

Woo another 16 year old at school

[nullsquared]

Adding to the complex debate: you can't compare imaginary numbers in general, you have to use a specific criteria. For example, you can't say that 3i > 2i, but you CAN say that |3i| > |2i| (but then |-3i|>|2i| is also true)

[Ninja_Blue]

I have FST (Functions, Statistics, and Trigonometry), that's a bitch. I have that exam tomorrow. Going to bomb it.