1/Cho a = log7, b = log2. Tính log$\binom{7}{5}$
2/ Cho a = log$\binom{7}{14}$ , b = log$\binom{5}{14}$ . Tính log$\binom{28}{35}$
1/Cho a = log7, b = log2. Tính log$\binom{7}{5}$
2/ Cho a = log$\binom{7}{14}$ , b = log$\binom{5}{14}$ . Tính log$\binom{28}{35}$
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