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homework 7 solutions

homework 7 solutions - Engineering Math Homework 7...

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Engineering Math Homework 7 Solutions Spring 2009 B C  &BC  Ð\$B  %ÑC œ ! B œ ! # ww w \$ ! (1) The coefficients are variables, not constants. (2) The point is a singular point of the DE. ! (3) : œ & œ & ; œ Ð\$B  %Ñ œ % ! ! BÄ! BÄ! \$ lim lim <Ð<  "Ñ  &<  % œ ! <  %<  % œ ! < œ #ß # # (4) C œ B + B C œ C B  B E B " 7 # " 7 # 7 # 7 7œ! _ _ ! ! ln 1 (5) C œ + B C œ Ð7  #Ñ+ B C œ Ð7  #ÑÐ7  \$Ñ+ B ! ! ! 7œ! 7œ! 7œ! _ _ _ 7 7 7 7# w 7\$ ww 7% ! ! ! ! 7œ! 7œ! 7œ! 7œ! _ _ _ _ 7 7 7 7 7# 7# 7" 7# Ð7  #ÑÐ7  \$Ñ+ B  & Ð7  #Ñ+ B  \$ + B  % + B œ ! ! ! ! ! 7œ! 7œ! 7œ\$ 7œ! _ _ _ _ 7 7 7\$ 7 7# 7# 7# 7# Ð7  #ÑÐ7  \$Ñ+ B  & Ð7  #Ñ+ B  \$ + B  % + B œ ! '+ B  #+ B  "!+ B  &+ B  %+ B  %+ B  %+ ! " ! " ! " # # " # " # " Ð7  #ÑÐ7  \$Ñ+  &Ð7  #Ñ+  \$+  %+ B œ ! ! 7œ\$ _ 7 7 7\$ 7 7# + B  %+  Ð7  #ÑÐ7  \$Ñ+  &Ð7  #Ñ+  \$+  %+ B œ ! "

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homework 7 solutions - Engineering Math Homework 7...

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