A rectangular box has a length of 1 in, width of 2 in, and height of 3 in. Find the cosine of the angle between the diagonal of the box and the diagonal of its base.

what is the volume of the parallelepiped by <-5; 2; 1>, <1; -1; -3> and
<-1; -1; -4>?

(a) 9 
(b) 10 
(c) 11 
(d) 12 
(e) None of the above

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milcah answered 1 year ago

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