There are two of them that I can't figure out: 1. On this one I got 0, but it's supposed to be 2 And 2. On this one I got but its supposed to be . My answer is off. Any help is appreciated.
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I think you can do it now.
The first integration yields: Now, using the limits: Now for that part: Of course, this is easy enough:
Thanks. Didn't consider the cos(0). Thanks wingless... I forgot about splitting the functions. Anyone for the second problem?
Make the substitution for the inner integral, the rest is just straightforward computation.
Originally Posted by Aryth Thanks. Didn't consider the cos(0). Thanks wingless... I forgot about splitting the functions. Anyone for the second problem? the second one we can do by substitution. first letting u = 2x + y, we get: continue in the same manner. was that what you tried?
Ah, I did it the same way, but I see what I did wrong... It was in the first iteration: That would completely explain why I was over. I completely forgot the lower limit.
Originally Posted by Aryth Ah, I did it the same way, but I see what I did wrong... It was in the first iteration: That would completely explain why I was over. ah, ok, good catching your mistake
Thanks... Bad news is, I made the same mistake on both problems. I gotta watch the lower limits. :P
Originally Posted by Aryth Thanks... Bad news is, I made the same mistake on both problems. I gotta watch the lower limits. :P haha, indeed. now you know you weakness, you can work at squashing it. this should not hurt you in an exam now
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