Aplikasi Integral Vektor [PDF]

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Y 1. Find : a. The area b. Vx = 3 c. Vy= 7



9



(4,1) X 3



2. Calculate the area between curves y = 2 cos x and y = sin 2x ;



Vector 1. |a | = 2 ; |b | = 2 b.(a-b) = -2 Calculate : a) cos ,  is the angle between a xb b) |2a +b| a) |a | |b | cos  -  4 cos  - 4 = -2



= -2



cos  =  = 60 b) |2a +b| = √ =√ =√



= 2√























≤x≤



2. Projections vector u = 2i +j - 3k at vector v = -4i +5j + 2k is … u = (



) v = (







. v =



 



)



(



=-



=(



( )



)



)