log(2)根号18+1/2log(2)56-log(2)3根号7_数学解答

log(2)根号18+1/2log(2)56-log(2)3根号7

人气：396 ℃　时间：2020-01-27 05:05:17

解答

LOG(2,√18)+(1/2)LOG(2,56)-LOG(2,3√7)=(1/2)(LOG(2,2)+LOG(2,3^2))+(1/2)(LOG(2,8)+LOG(2,7))-LOG(2,√63)=(1/2)+LOG(2,3)+3/2+(1/2)LOG(2,7)-(1/2)(LOG(2,3^2)+LOG(2,7)=2+LOG(2,3)+(1/2)LOG(2,7)-LOG(2,3)-(1/2...