Question: 1:0A I %00 A 3 points Find the angle between the vectors a and b , where a =i+ 2j k and b -i+j-2k.

1:0A I %00 A 3 points Find the angle between the vectors

1:0A I %00 A 3 points Find the angle between the vectors a and b , where a =i+ 2j k and b -i+j-2k. 30 -30 60 -60 Consider the point A,B,C,D 3 points where coordinates are respectively (1,1,0),(-1,1,0), (1,-1,0),(0,-1,1) .find the angle between AC and BD. * Your answer * 3 points By using the cross - product that points A(5,2,-2),B(6,1,4),C(-2,-3,6) and D(-3,-2,-1) .Are the victories of parallelogram?

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