Double Integral Example: looks impossible!

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The trick here is to swap the order of integration, then the inner integral will be simpler. This works because the limits are constants.
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Thnx soooo much for this vid. Have exam 2mrw n saw a question like this on a past paper n it bowled me!! This really helped...in addition to u answering some of the questions in the comment section. I had the same questions but u ably cleared them up

moya-gayehamilton
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1:56 Why do you divide by x? Is this a definition or something?

ariel_chess
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Thank you sir
It was so helpful for me. 👌👌

jeevapaul
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Thanks a lot for you. Just i had problem that why you are divided the step 2 by x but i wrote the comments then i got it. ❤️❤️❤️

mahdiahmed
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Aren’t you supposed to multiply the x instead of dividing

muhammadmuneer
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It's not clear to me why you divide - x by x

WelshGuitarDude
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X sin(xy) we will do by parts integration, , here u done wrong

munazirhussain