7 log 42/2 +7 log 2 pkek jln

LogAritMa

7'log 42 : (2 + 7'log 2)
= 7'log 42 : (7'log 7² + 7'log 2)
= 7'log (6 × 7) : 7'log (7² × 2)
= (log 6 + log 7) / (2 log 7 + log 2)
= (0,778 + 0,845) / (2 × 0,845 + 0,301)
= 1,623 / 1,991
= 1623/1991

[tex]=\log _{ 7 }{ \frac { 42 }{ 2 } +\log _{ 7 }{ 2 } } \\ =\log _{ 7 }{ \left( \frac { 42 }{ 2 } \cdot 2 \right) } \\ =\log _{ 7 }{ 42 } \\ =\log _{ 7 }{ (7\cdot 6) } \\ =\log _{ 7 }{ 7 } +\log _{ 7 }{ 6 } \\ =1+\log _{ 7 }{ 6 } [/tex]