Answer to Question #233958 in Electrical Engineering for Rakesh

Question #233958
Given that A=3ax+5ay-7az and B=ax-2ay+az find
1
Expert's answer
2021-09-07T00:33:17-0400

"2B + 0.4A = <12*1+0.4*3,12*(-2)+0.4*5 , 12*1+0.4*(-7)>\\\\\n =<13.2, -22, 9.2> = 13.2 ax-22ay + 9.2az\\\\\nA.B = 3*1 + 5*(-2) + (-7)*1 = 3-10-7 =-14\\\\\n|B|^2 = 12 + (-2)^2 +12 = 1+4+1 = 6\\\\\nA.B -|B|^2 = -14 - 6 =-20\\\\"


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