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SVTPerformance's Chain of Restaurants
Road Side Pub
Calculus 2 is kicking my ass
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<blockquote data-quote="Satyr" data-source="post: 7835378" data-attributes="member: 32040"><p>depending on whether your professor prefers natural logs or exponentials...mine liked natural logs.</p><p>btw: the problem actually required parts rather than u-sub.</p><p></p><p>the final solution is, if i integrated correctly:</p><p>1/2{(secxtanx)+(ln|secx+tanx|)} + k</p><p></p><p>i'm not sure why you would use substitution...you'll end up getting a more complex problem that you, ultimately, have to use parts for anyways.</p><p>a good rule of thumb is to just look at the initial problem.</p><p>think about what you'll be subbing for, do a quick mental integration and decide if it's going to cancel anything out...if not, probably not the right tactic (though, this is not always the case).</p></blockquote><p></p>
[QUOTE="Satyr, post: 7835378, member: 32040"] depending on whether your professor prefers natural logs or exponentials...mine liked natural logs. btw: the problem actually required parts rather than u-sub. the final solution is, if i integrated correctly: 1/2{(secxtanx)+(ln|secx+tanx|)} + k i'm not sure why you would use substitution...you'll end up getting a more complex problem that you, ultimately, have to use parts for anyways. a good rule of thumb is to just look at the initial problem. think about what you'll be subbing for, do a quick mental integration and decide if it's going to cancel anything out...if not, probably not the right tactic (though, this is not always the case). [/QUOTE]
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SVTPerformance's Chain of Restaurants
Road Side Pub
Calculus 2 is kicking my ass
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