1. Find :a. The areab. Vx = 3c. Vy= 7XY(4,1)39

2. Calculate the area between curves y = 2 cos x and y = sin 2x ; x Vector1. |a | = 2 ; |b | = 2b.(a-b) = -2Calculate : a) cos , is the angle between a xb b) |2a +b|

a) |a | |b | cos - = -24 cos - 4 = -2cos = = 60

b) |2a +b| = = = = 22. Projections vector u = 2i +j - 3k at vector v = -4i +5j + 2k is u = v = . v = = - =