对数计算
问题描述：
对数计算
1.{log(4)（3）+ log(8) (3)} X {log(3)(2)+log(9)(2)}
2.{log(2)(3)} X {log(3)(4)+log(9)(2)}
3.(lg2)^+1g2X 1g5 +1g50
答
1.[log4(3) + log8(3)]×[log3(2) + log9(2)]= [(1/2)·log2(3) + (1/3)·log2(3)]·[log3(2) +(1/2)· log3(2)]= (5/6)·log2(3)·(3/2)log3(2)= [(5/6)·(3/2)]·[log2(3)·log3(2)]= (5/4)·(1)= 5/42.log2(3)× ...