Mathematics, 15.07.2019 23:30, elizabethhubbe
10 points! let u = < -4, 1> , v = < -1, 6> . find -2u + 4v. a) < 4, 22> b) < 4, 7> c) < 12, -26> d) < 10, -14>
Answers: 1
![\vec{u}=[-4;\ 1];\ \vec{v}=[-1;\ 6]\\\\-2\vec{u}+4\vec{v}=-2[-4;\ 1]+4[-1;\ 6]\\\\=[(-2)(-4);\ (-2)(1)]+[(4)(-1);\ (4)(6)]\\\\=[8;\ -2]+[-4;\ 24]=[8+(-4);\ -2+24]=[4+22]\to A)](/tpl/images/0094/2135/02465.png)
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10 points! let u = < -4, 1> , v = < -1, 6> . find -2u + 4v. a) < 4, 22> b) <...
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