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Question: error in using subs command

Question:error in using subs command

tayyab 5
substitution
June 08 2011
0



Error, invalid input: numer expects its 1st argument, x, to be of type {set, list, algebraic}, but received (2/3)*beta^2+1 = 0

  



Download coupled_code_Mapl.mw

i want to use the value of alpha obtained in second last line of code exi of j and use it in the last line of code i.e theta of j to obtain value of beta.

i think i am doing some mistake. i am attaching the worksheet.

Help me.

with regards.
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