Nguyễn Đậu Cẩm Tú
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Đặt \(a = {\log _2}3,b = {\log _2}5,c = {\log _2}7\). Biểu diễn \({\log _{60}}1050\) theo a, b, c.
A. \({\log _{60}}1050 = \frac{{1 + a + 2b + c}}{{1 + 2a + b}}\)
B. \({\log _{60}}1050 = \frac{{1 + a + 2b + c}}{{2 + a + b}}\)
C. \({\log _{60}}1050 = \frac{{1 + a + b + 2c}}{{1 + 2a + b}}\)
D. \({\log _{60}}1050 = \frac{{1 + 2a + b + c}}{{2 + a + b}}\)
A. \({\log _{60}}1050 = \frac{{1 + a + 2b + c}}{{1 + 2a + b}}\)
B. \({\log _{60}}1050 = \frac{{1 + a + 2b + c}}{{2 + a + b}}\)
C. \({\log _{60}}1050 = \frac{{1 + a + b + 2c}}{{1 + 2a + b}}\)
D. \({\log _{60}}1050 = \frac{{1 + 2a + b + c}}{{2 + a + b}}\)