Trong R^3 cho hệ 3 vecto: U1=( -1,3,2) U2=( 2,1,4)

U3=( 1,-2,5)

Chứng minh hệ trên là một cơ sở

The john nash mall used 17,4000 kilowatt hours in may, with a peak load of 92 kilowatts. the demand charge is $5.95 per kilowatt, and the energy charge is $0.08 per kilowatt hour. the fuel adjustment charge is $0.017 per kilowatt hour. what is the total electricity cost for may?