如何把2log2 7转化为 2(log2 14)-log2 2
log2 SQR(7/48)+log2 12 -1/2log2 48
log2 SQR(7/48)+log2 12 -1/2log2 42
Log2√(7/48) +log2 12 -(1/2)log2 42
log2 3乘以log2 3等于2log2
(log2 9)/(log2 8) = 2/3(log2 3)
解方程log2(x+14)-log2(x+6)=3-log2(x+2)
log2底根号5/56+log2(14)-1/2log2(35)
1/2log2(7/48)+log2 12-1/2log2 42
log2(根号下7/48)+log2(12)-1/2log2(42)-1=?
log2(√1/48)+log2 12-1/2log2 (24)-1/3
2^(log2^(-3))=
|2x-log2^x|