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anonymous
 5 years ago
int(int(6xy^3 x=y..1) y=0..1) dxdy
anonymous
 5 years ago
int(int(6xy^3 x=y..1) y=0..1) dxdy

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Is your problem\[\int\limits_{0}^{1}\int\limits_{y}^{1}6xy^3dxdy\]?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Okay, just give me a sec to do something nonmathematical. I can help you.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok, cool. i got 1/4, can you tell me if that's right? when ever you're done though

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Okay...I scratched it out and got 1/4 too. You know what you're doing.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yeah but i'm have a problem with another one...is it ok to ask you one more?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok it's another double...int(int(5sin(x+y) x=0..pi/2) y=0..pi/2) dxdy

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I got 10. Is that what you got?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i keep getting stuck...this is the third time trying to do it again

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0It might be easier for me to scan what I did and attach then write it out...have a look through if and ask questions.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Everything under the red line.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0sorry im comparing right now...

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0That's okay. I'll be online for a while. Just post when you're ready. If I don't respond 'immediately', I'm away from the computer.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I think you're getting trapped by not just accepting that the other variable is just a constant when you integrate over the other in a double integral.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0your fourth step is different from mine. i dont understand how you went from cos (pi/2 + y) to it becoming sin y

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0We get very used to thinking of x and y as things that vary, rather than stand still.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0You can use the double angle formula. You'll see I did that expansion in the top right corner (under the red line).

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[\cos(\frac{\pi}{2}+y)=\cos \frac{\pi}{2}\cos y  \sin \frac{\pi}{2}\sin y\]\[=0 \times \cos y + ( 1) \times \sin y=\sin y\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0thank you so much. i would have never remembered that rule

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0when you're done and you're satisfied, it'd be great if you could click the 'become a fan' link :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so you're getting the same answer?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes, after remembering the rule it all made sense
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