[tex]\log_23=a\\\log_2{4.5}=\log_2{\frac{9}{2}}=\log_29-\log_22=\\=\log_2{3^2}-1=2\log_23-1=2a-1[/tex]
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[tex]\log_23=a\\\log_2{4.5}=\log_2{\frac{9}{2}}=\log_29-\log_22=\\=\log_2{3^2}-1=2\log_23-1=2a-1[/tex]
pozdrawiam