Question: if A = - 5 ax + 5 ay + 9 az and B = 5 ax + 5 ay - 4 az find; (

if A =-5ax +5ay+9az and B =5ax +5ay -4az find; (a) the scalar projections of A on B,(b) thevector projection of B on A,(c) the unit vector perpendicular to the plane containing A and B,(d)2A 3B,(e) angle between A and B.

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