diketahui vektor u = (2,4) dan v=(-1,5) jika vektor w memenuhi persamaan 2v+5w=3w-4u.hasil operasi vektor u+2v+w=...

2v + 5w = 3w - 4u
5w - 3w = -4u -2v
2w = -4u - 2v
w = -2u - v
w = -2( 2 , 4 ) - ( -1 , 5 )
w = ( -4 , -8 ) - ( -1 , 5 )
w = ( -3 , -13 )

u + 2v + w
= ( 2 , 4 ) + 2( -1 , 5 ) + ( -3 , -13 )
= ( 2 , 4 ) + ( -2 , 10 ) + ( -3 , -13 )
= ( -3 , 1 )