已知向量a=(3,5,1),b=(2,2,3),c=(4,−1,−3),则向量2a−3b+4c的坐标为_.

问题描述:

已知向量

a
=(3,5,1),
b
=(2,2,3)
c
=(4,−1,−3)
,则向量2
a
−3
b
+4
c
的坐标为______.

a
=(3,5,1),
b
=(2,2,3)
c
=(4,−1,−3)

∴向量2
a
−3
b
+4
c

=2(3,5,1)-3(2,2,3)+4(4,-1,-3)
=(16,0,-19)
故答案为:(16,0,-19).