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Ecuatie logaritmica
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Ecuatie logaritmica
Posted:
Tue Jan 19, 2010 10:43 pm
by
alex2008
Sa se afle
\( a\in (0,\pi) \)
astfel incat
\( 2^{\cos 2a-1}=1+\log_2\cos a \)
.
Posted:
Tue Jan 19, 2010 10:51 pm
by
Marius Mainea
\( a=\frac{\pi}{4} \)
solutie unica.