Question

resolva a equação (1,12)^x=2

Answer 1

$\fbox{ y=\ell og_a(b)~\Leftrightarrow~a^y=b }\\\\\\(1,12)^x=2\\\\\begin{pmatrix}\frac{112}{100}\end{pmatrix}^x=2\\\\\begin{pmatrix}\frac{28}{25}\end{pmatrix}^x=2\\\\x=\ell og_{\frac{28}{25}}(2)$