Seudónimo
Seudónimo
01-06-2015
Mathematics
contestada
Solve algebraically 3^x= 243
Respuesta :
hunaifirst
hunaifirst
01-06-2015
3^x=243
so :
³log243=x
³log 3^5=x
x=5
or
5^√243
=3
Answer Link
Panoyin
Panoyin
01-06-2015
[tex]3^{x} = 243 \\ln(3^{x}) = ln(243) \\xln(3) = ln(243) \\\frac{xln(3)}{ln(3)} = \frac{ln(243)}{ln(3)} \\x = \frac{ln(243)}{ln(3)} \\x = \frac{ln(3^{5})}{ln(3)} \\x = \frac{5ln(3)}{ln(3)} \\x = 5[/tex]
Answer Link
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