LaddiusMaximus
  • LaddiusMaximus
cosxsin^2x+cos^3x
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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myininaya
  • myininaya
simplify?
myininaya
  • myininaya
cosx((sinx)^2+(cosx)^2)=cosx
amistre64
  • amistre64
cos(x)(sin^2 + cos^2) cos(x)(1) = cos(x)

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myininaya
  • myininaya
no mistakes for the win!
LaddiusMaximus
  • LaddiusMaximus
lost. im so going to fail this quiz on tuesday.
amistre64
  • amistre64
:)
amistre64
  • amistre64
I got a trig test on....either mon or wed..cant recall
LaddiusMaximus
  • LaddiusMaximus
this class is being taught counterintuitive to the way I learn
LaddiusMaximus
  • LaddiusMaximus
start over from the beginning please.
amistre64
  • 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
  • LaddiusMaximus
well i keep failing my tests and quizzes no matter how hard I try and its pissing me off.
anonymous
  • 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
  • amistre64
wish I could help there; but its like learning your times tables, practice, practice, practice....and then you still mess up sometimes :)
myininaya
  • myininaya
time tables are fun!
amistre64
  • amistre64
lol .... my daughter doesnt think so :)
myininaya
  • myininaya
but trig is funner than time tables
myininaya
  • myininaya
I like going in circles
amistre64
  • amistre64
....and surfing on waves :)
myininaya
  • myininaya
and angles are cool too!
amistre64
  • amistre64
I programmed me a Spirograph maker in Javascript; my kids think its "cool".
LaddiusMaximus
  • LaddiusMaximus
i wish I thought it was fun. I want to understand this so bad and its frusterating to fail....repeatedly
amistre64
  • 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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