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kevin7ama
Group Title
im having trouble integrating the double iterated integral
R= [0,3] X [0,rad(9y^2)]
and the function inside the integral is "y dy dx"
 2 years ago
 2 years ago
kevin7ama Group Title
im having trouble integrating the double iterated integral R= [0,3] X [0,rad(9y^2)] and the function inside the integral is "y dy dx"
 2 years ago
 2 years ago

This Question is Open

kevin7ama Group TitleBest ResponseYou've already chosen the best response.0
\[\int\limits_{0}^{3}\int\limits_{0}^{\sqrt{97^{2}}} y dy dx\] thats the integral
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.1
something's not right with either your limits or your order of integration...
 2 years ago

kevin7ama Group TitleBest ResponseYou've already chosen the best response.0
sorry your right.... its y dx dy
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.1
if you're integrating in 'dy' .. your limits will be functions of x
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.1
that works...
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.1
integral of ydx is yx +C
 2 years ago

kevin7ama Group TitleBest ResponseYou've already chosen the best response.0
ive tried u sub...and integration by parts. but i just cant get the answer....
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.1
still something weird about it though... shouldn't be written like that...
 2 years ago

kevin7ama Group TitleBest ResponseYou've already chosen the best response.0
the problem just says.... evaluate the iterated integral
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.1
they're writing it weird to try and throw you off I guess...
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.1
anyway... plug in the limits on 'x' ... ( 0 ... srt(9y^2) ) and then evaluate with respect to dy
 2 years ago

kevin7ama Group TitleBest ResponseYou've already chosen the best response.0
but then what? dont we need to simplifly
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.1
so (y*sqrt(9y^2) + C) dy
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.1
you can use u sub.s ...
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.1
9y^2 = u 2y dy = du y dy = du/2
 2 years ago

kevin7ama Group TitleBest ResponseYou've already chosen the best response.0
yes but then we need to plug in 3 into \[\sqrt{93^{2}}\] wich equals 0 in the rad
 2 years ago

kevin7ama Group TitleBest ResponseYou've already chosen the best response.0
ends up canceling everything out.... and the answer is supposed to be 3
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.1
lower limit?
 2 years ago

kevin7ama Group TitleBest ResponseYou've already chosen the best response.0
ive done this problem like no lie 10 times and i never pluged in the lower limit = 0 giving me the right answer 9
 2 years ago

kevin7ama Group TitleBest ResponseYou've already chosen the best response.0
thank you so much for letting me realize this. how to i give a medal??
 2 years ago

Algebraic! Group TitleBest ResponseYou've already chosen the best response.1
click 'best response'
 2 years ago
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