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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"
 one year ago
 one year ago
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"
 one year ago
 one year ago

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kevin7amaBest ResponseYou've already chosen the best response.0
\[\int\limits_{0}^{3}\int\limits_{0}^{\sqrt{97^{2}}} y dy dx\] thats the integral
 one year ago

Algebraic!Best ResponseYou've already chosen the best response.1
something's not right with either your limits or your order of integration...
 one year ago

kevin7amaBest ResponseYou've already chosen the best response.0
sorry your right.... its y dx dy
 one year ago

Algebraic!Best ResponseYou've already chosen the best response.1
if you're integrating in 'dy' .. your limits will be functions of x
 one year ago

Algebraic!Best ResponseYou've already chosen the best response.1
integral of ydx is yx +C
 one year ago

kevin7amaBest ResponseYou've already chosen the best response.0
ive tried u sub...and integration by parts. but i just cant get the answer....
 one year ago

Algebraic!Best ResponseYou've already chosen the best response.1
still something weird about it though... shouldn't be written like that...
 one year ago

kevin7amaBest ResponseYou've already chosen the best response.0
the problem just says.... evaluate the iterated integral
 one year ago

Algebraic!Best ResponseYou've already chosen the best response.1
they're writing it weird to try and throw you off I guess...
 one year ago

Algebraic!Best 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
 one year ago

kevin7amaBest ResponseYou've already chosen the best response.0
but then what? dont we need to simplifly
 one year ago

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

Algebraic!Best ResponseYou've already chosen the best response.1
you can use u sub.s ...
 one year ago

Algebraic!Best ResponseYou've already chosen the best response.1
9y^2 = u 2y dy = du y dy = du/2
 one year ago

kevin7amaBest 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
 one year ago

kevin7amaBest ResponseYou've already chosen the best response.0
ends up canceling everything out.... and the answer is supposed to be 3
 one year ago

kevin7amaBest 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
 one year ago

kevin7amaBest ResponseYou've already chosen the best response.0
thank you so much for letting me realize this. how to i give a medal??
 one year ago

Algebraic!Best ResponseYou've already chosen the best response.1
click 'best response'
 one year ago
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