2 raspunsuri

1. 

   gunty maestru (V)

   2014-01-23T20:11:41+02:00A raspuns pe 23 ianuarie 2014 la 8:11 PM

   Rezolvarea primei probleme:

   *** QuickLaTeX cannot compile formula:
   \[
   	\begin{array}{l}
   	 a_1  = 2,\;a_{n + 1}  = \frac{{8a_n }}{{4a_n  - 5}}\;_{\left( 1 \right)} . \\
   	 P\left( n \right)]
   
   *** Error message:
   \begin{array} on input line 9 ended by \end{document}.
   leading text: \end{document}
   Improper \prevdepth.
   leading text: \end{document}
   Missing $ inserted.
   leading text: \end{document}
   Missing } inserted.
   leading text: \end{document}
   Missing \cr inserted.
   leading text: \end{document}
   Missing $ inserted.
   leading text: \end{document}
   You can't use `\end' in internal vertical mode.
   leading text: \end{document}
   \begin{array} on input line 9 ended by \end{document}.
   leading text: \end{document}
   Missing } inserted.
   leading text: \end{document}
   Emergency stop.
   
   

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2. 

   DD profesor

   2014-01-23T21:54:48+02:00A raspuns pe 23 ianuarie 2014 la 9:54 PM

   Cred ca o metoda mai simpla este s reprezinte functia asociata relatiei de recurenta y=8x/(4x-5)(pentru x>0) si rdreapta Y=x (dreapta de traducere)Se pleacade la a1=2,respetiv x=2si grafic se determina a2, a3….. ETC Apar doua siruri de termeni ; un sub sir crescator de la 2 la 13/4(solutia ntersectiei x=8x/(4x-5) si un subsir dscrscator de la 16/3 la 13/4.incercati si veti vedea ca este usor si frumos

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