(log3^14-log3^2)log7^9求值
求值 3^2-log3(2)= log7(log5(log2(32)))=?
已知log7[log3(log2x)]=0,那么x1/2等于
log3 (4√27)/3 +lg25 +lg4 +7^(log7 2)
解不等式(2+log3 x)log3 x>log3 (9x)
求值:(log4^ 3+log8 ^9)*(log3^ 2+log9 ^16)
log3(2)*log8(9)
log2^3*log3^7*log7^8
log7[log3(log2x)]=log5tan45°
利用换底公式求值:1.log2 25 ×log3 4 ×log5 9 2.(log4 3+log8 3)(log3 2+
我是这样做的log2(3)*log3(5)*log5(49)*log7(64)=log2(3)*log3(5)*2log
试证明:log7(2)/log7(3)=log3(2),其中7是底数,括号内的数字是真数
计算log3[(9^2 * 27^(1/3))/3^(log3 234)]