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#fc5ed786-9bc1-4223-bdc4-1b6904bc09aa基础fill_compute对数与对数函数函数

21.计算:log32743+lg5+7log72+log23log94+lg2={\log _3}\frac{\sqrt[4]{27}}{3}+lg5+{7^{{{\log }_7}2}}+{\log _2}3\cdot {\log _9}4+lg2=___154\frac{15}{4}___.