log2 14-2log2 7/3+log2 7-log2 18是多少2是小2
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log2 14-2log2 7/3+log2 7-log2 18是多少2是小2
log2^(4^7*2^5)+log2^6-log2^3
求值:log2 (5/56)^(1/2)+log2 (14)-(1/2)log2 (35)=log2中2为底数=1/2[-2log2 (7)-3]+log2 (2)+log2 (7) 中的1/2[-2log2 (7)-3]是怎么得到的?
log2(3)×log2(4)=log2(7)?log2(3)×log2(4)=log2(7)吗?log2(1/49)+log2(1/16)+log2(1/27)等于多少呢?帮个忙!
化简算式log2^√7/48+log2^12-1/2log2^42+1/2^log2^3
如何把2log2 7转化为 2(log2 14)-log2 2
解方程log2(x+14)-log2(x+6)=3-log2(x+2)
以2为底的对数值是多少?像log2(3),log2(5),log2(7).这种
log2 SQR(7/48)+log2 12 -1/2log2 42
log2 SQR(7/48)+log2 12 -1/2log2 48
(log2 9)/(log2 8) = 2/3(log2 3)
log2 3乘以log2 3等于2log2
|[log2(x)]^2-3log2(x)+1|
log2 6-log2 3
log2^6-log2^3
log2(4)/log2(3)
2log2^3=
化简log2 1/2+log2 2/3+log2 3/4+.+log2 31/32