sat_chen
am i doing this integration right?
( wait like 2 min to draw my problem and solution steps) thanks
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sat_chen
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sat_chen
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sat_chen
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sat_chen
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sat_chen
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is that right sorry couldnt think of a better way
incomplte
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Looks good to me
sat_chen
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last problem before im done for the week so can someone else verify ty
sat_chen
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not that i dont respect you incompite :P
abb0t
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You could of separated it from the beginning first: \[\int\limits \frac{ \sec^2(x) }{ \tan^2(x) }dx - \int\limits \frac{ 1 }{ \tan^2(x) }dx \]
use u-substitution:
u = tan(x)
du = sec^2(x)
\[\int\limits \frac{ 1 }{ u^2 }du - \int\limits \frac{ 1 }{ \tan^2(x) }dx\]
and you know: \[\frac{ 1 }{ \tan^2(x) }= \frac{ 1 }{ \frac{ \sin^2(x) }{ \cos^2(x) } } = \frac{ \cos^2(x) }{ \sin^2(x) }= \cot^2(x)\]
proceed: \[\int\limits \cot^2(x)dx = -x-\cot(x)+C\]
PUT EVERYTHING TOGETHER:
\[-\frac{ 1 }{ \tan(x) }-(-x-\cot(x))+C\]
incomplte
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You got the questions wrong @abb0t . Its tan/sec not the other way around
sat_chen
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you did the question wrong
abb0t
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omg. Lol. fudge.
sat_chen
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well sorry for making you waste so much time :(
sat_chen
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so was i right abb0t
sat_chen
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i feel really bad for making you take so long and you got the question wrong really sorry next time ill make iit more clear :(
incomplte
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lol im pretty sure it is
abb0t
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mmk.
incomplte
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The int of sec^2 is tan. You dont need any other steps to compute that.
sat_chen
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the sec^2x cancel out leaving 2/sec^2x which is 2ln(tanx) right
incomplte
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you cant just throw the 1 away. Its 1, not 0
abb0t
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am i looking @ the wrong question?! LOL
sat_chen
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sat_chen
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heres the question again
sat_chen
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yea i do believe its right ty guys i feel bad for ab0t all that work :(
incomplte
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If your professors says its wrong, request to see where they got their degree from lol
sat_chen
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my professor is a smart dude hes got masters at 21 so ill believe him if he says im wrong XD
abb0t
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lol. whoa watch out, we got a bada_ _!! JK he's human and still susceptible to mistakes.
incomplte
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Well im 4 months away too, in electrical engineering to be precise.
sat_chen
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me too woot
sat_chen
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im also ece
sat_chen
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but im second year 19 so if i try hard enough i may get done by 21
abb0t
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i'm abt 2 graduate 8th grade.
sat_chen
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avoided math as much as i could :P
incomplte
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hahahhaa
sat_chen
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yea right abo0t
incomplte
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You prolly still have to take diffe eq, multi variate and statistics then. Good luck lol
abb0t
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Don't forget Linear Algebra.
incomplte
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So smart for someone who is in 8th grade
sat_chen
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yea i do and i hate math so not the best major for me XD
sat_chen
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hest that dude right there
abb0t
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omg. lol. i was guessing. geezbus. Lol
incomplte
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Dont give up though, the degree is hot cake once you graduate. I promise
sat_chen
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i know thats why im keeping at it
sat_chen
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and i know some people that got direct to intel from here for 100k + so im gonna work my retriceoff
sat_chen
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butt off*
sat_chen
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and hes 21 as well so should be a good life from then on :P
incomplte
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And that youtube guy is on a whole different level. As long as he can spit off derivatives and int from his head when he turns 18, otherwise he will be that one yotube guy
sat_chen
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that was just a quick google search btw so im sure there are more genious of abb0t level ;)
incomplte
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haha bye all
sat_chen
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u in us by the way