Cho \(a = {\log _2}3,{\rm{ }}\,b = {\log _2}5,{\rm{ }}c = {\log _2}7\). Biểu thức biểu diễn \({\rm{lo}}{{\rm{g}}_{60}}1050\) là:
A.\({\rm{lo}}{{\rm{g}}_{60}}1050 = \frac{{1 + a + b + 2c}}{{1 + 2a + b}}\).
B.\({\rm{lo}}{{\rm{g}}_{60}}1050 = \frac{{1 + 2a + b + c}}{{2 + a + b}}\).
C.\({\rm{lo}}{{\rm{g}}_{60}}1050 = \frac{{1 + a + 2b + c}}{{1 + 2a + b}}\).
D.\({\rm{lo}}{{\rm{g}}_{60}}1050 = \frac{{1 + a + 2b + c}}{{2 + a + b}}\)
A.\({\rm{lo}}{{\rm{g}}_{60}}1050 = \frac{{1 + a + b + 2c}}{{1 + 2a + b}}\).
B.\({\rm{lo}}{{\rm{g}}_{60}}1050 = \frac{{1 + 2a + b + c}}{{2 + a + b}}\).
C.\({\rm{lo}}{{\rm{g}}_{60}}1050 = \frac{{1 + a + 2b + c}}{{1 + 2a + b}}\).
D.\({\rm{lo}}{{\rm{g}}_{60}}1050 = \frac{{1 + a + 2b + c}}{{2 + a + b}}\)
Loga
Hóa Học lớp 12
