Co-aontaran ailseabrachCo-aontaran logaritmeach agus eagspoineinsial

Cuimhnich air aon de na riaghailtean aig logan: \({\log _a}x - {\log _a}y = {\log _a}\frac{x}{y}\)

\({\log _p}12 - {\log _p}x = {\log _p}1\)

\({\log _p}\frac{{12}}{x} = {\log _p}1\)

\(\frac{{12}}{x} = 1\)

\(x = 12\)

Cuimhnich air aon de na riaghailtean aig logan: \(n{\log _a}x = {\log _a}{x^2}\)

Tha riaghailt eile ga cleachdadh an seo: \({\log _a}x + {\log _a}y = {\log _a}xy\)

\(2{\log _a}x + {\log _a}2 = {\log _a}50\)

\({\log _a}{x^2} + {\log _a}2 = {\log _a}50\)

\({\log _a}2{x^2} = {\log _a}50\)

\(2{x^2} = 50\)

\({x^2} = \frac{{50}}{2}\)

\({x^2} = 25\)

\(x = \pm 5\)

\(x = 5\) bhon a tha \(x\textgreater0\)