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- LaddiusMaximus

cosxsin^2x+cos^3x

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- LaddiusMaximus

cosxsin^2x+cos^3x

- chestercat

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- myininaya

simplify?

- myininaya

cosx((sinx)^2+(cosx)^2)=cosx

- amistre64

cos(x)(sin^2 + cos^2)
cos(x)(1) = cos(x)

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- myininaya

no mistakes for the win!

- LaddiusMaximus

lost. im so going to fail this quiz on tuesday.

- amistre64

:)

- amistre64

I got a trig test on....either mon or wed..cant recall

- LaddiusMaximus

this class is being taught counterintuitive to the way I learn

- LaddiusMaximus

start over from the beginning please.

- amistre64

Trig is ALOT of memorizing; and after you learn it, it is useless cause they got calculators to tell you what the values are. All trig class does it lets you know HOW these things were creatd and maybe some useful tidbits with identities for later in calculus...

- LaddiusMaximus

well i keep failing my tests and quizzes no matter how hard I try and its pissing me off.

- anonymous

OK factor out a cosx so you have cosx(sin^2x + cos^2x)
The most important trig identity is sin^2x + cos^2x = 1
so you substitue 1 for sin^2 + cos^2x and you get
cos x(1) = cosx

- amistre64

wish I could help there; but its like learning your times tables, practice, practice, practice....and then you still mess up sometimes :)

- myininaya

time tables are fun!

- amistre64

lol .... my daughter doesnt think so :)

- myininaya

but trig is funner than time tables

- myininaya

I like going in circles

- amistre64

....and surfing on waves :)

- myininaya

and angles are cool too!

- amistre64

I programmed me a Spirograph maker in Javascript; my kids think its "cool".

- LaddiusMaximus

i wish I thought it was fun. I want to understand this so bad and its frusterating to fail....repeatedly

- amistre64

Trig identities use alot of algebraic techniques to find solutions. And if you are weak in algebra.... then it will be tough. sorry....

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