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math456 Group TitleBest ResponseYou've already chosen the best response.0
\[\int\limits_{2}^{5} (42x)dx\]
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
which part is giving you night terrors?
 2 years ago

math456 Group TitleBest ResponseYou've already chosen the best response.0
lol the 2nd one!
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
what is the integration rule for x^n ?
 2 years ago

math456 Group TitleBest ResponseYou've already chosen the best response.0
\[\int\limits_{2}^{5} 4.dx  2\int\limits_{2}^{5}x.dx\]
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
or you can think of it in terms of derivatives; what is the derivative rule for x^n ?
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
good, now how would you undo that? which is all an integration is ... undoing a derivative
 2 years ago

math456 Group TitleBest ResponseYou've already chosen the best response.0
thats wht i am having trouble with!
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
divide by n and add 1 back to the exponent
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
\[x=x^1\]right?
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
\[x^1=x^{21}\]so n=2 in this case
 2 years ago

math456 Group TitleBest ResponseYou've already chosen the best response.0
ohh yea right!
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
so, does x^2 derive down to 2x?
 2 years ago

math456 Group TitleBest ResponseYou've already chosen the best response.0
yea it will be 2x^21
 2 years ago

math456 Group TitleBest ResponseYou've already chosen the best response.0
but we need x!
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
but we already have a 2x
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
you dont HAVE to pull out the constant. In this case it acutally helps out
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
\[\frac d{dx}x^2=2x\] \[\int 2x~dx=x^2\]
 2 years ago

math456 Group TitleBest ResponseYou've already chosen the best response.0
ohh gotch yea so, its gona be like (52)^2
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
\[\int\limits_{2}^{5} 4.dx  \int\limits_{2}^{5}2x.dx\] \[4x(5,2)  x^2(5,2)\] \[[4(5)4(2)]  [(5)^2(2)^2]\]
 2 years ago

math456 Group TitleBest ResponseYou've already chosen the best response.0
so i was doing just 1 term of x
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
you were mixing up the subtraction and the function into an ungodly abomination :)
 2 years ago

math456 Group TitleBest ResponseYou've already chosen the best response.0
yea right, i got it now! Thank you very much.. :)
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
\[\int_{a}^{b} f(x)~dx=F(b)F(a)~NOT~F(ba)\]
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
208(254) 20825+4 24  33 = 9 yes
 2 years ago

math456 Group TitleBest ResponseYou've already chosen the best response.0
yayy.. thanks again!
 2 years ago
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