1. 

   Laura Very Active Member

   Hi all,
   
   On page 24 of the notes, how do you get the expression of ((e^ys) + ye^ysds)dX_s?
   
   Thanks in advance for your help!

    

   Laura, Jun 30, 2022

   #1
2. 

   Steve Hales ActEd Tutor Staff Member

   Hi
   It comes from the "dX_s" and "dsdX_s" terms from the previous line. Note that both of these have a dX_s in them.
   Let me know if that doesn't help.
   Thanks

    

   Steve Hales, Jul 4, 2022

   #2

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