supplement to BOB p11-1 - Supplement to BOB (page 11) 12.1,...

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Supplement to BOB (page 11) 12.1, extra problems (1) ?ÐBß CÑ œ ÐB  C Ñ ln ## `? #B ` ? `B BC ÐBCÑ ÐB C ÑÐ#Ñ#BÐ#BÑ #B #C œœ œ # # # # `C #C #B #C # # # œ ! 9 (Note that this solution is not of the form , so it would not be found with the JÐBÑKÐCÑ technique of separation of variables.) (2) ?ÐBß CÑ œ G / 5 # ÐB C Ñ 12.3, #2 ?ÐBß >Ñ œ 5 > B  5 $ > $ B cos sin cos sin 11 1 1 " $ 12.5, #16 ?ÐBß >Ñ œ !Þ& %B / cos "'> 12.5, #31 BOB's answer is correct, but he unnecessarily put it into a compact form. Here is the answer written out term by term: ?ÐBß CÑ œ  â )! " B " $ B " & B #% #% $ $ #% #% & & #% #% C$ C& C 1 1 1 111 Š‹
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