diketahui vektor a =(-2,-3,4) b=(1,-1,3) dan c=(4,5,-3) tentukan 2a - b + 3c
jangan ngasal yha,mksh![]()
jangan ngasal yha,mksh
[tex]a = \left[\begin{array}{ccc}-2\\-3\\4\end{array}\right] \\\\\\b = \left[\begin{array}{ccc}1\\-1\\3\end{array}\right] \\\\\\c = \left[\begin{array}{ccc}4\\5\\-3\end{array}\right] \\\\\\[/tex]
[tex]2a-b+3c=2\left[\begin{array}{ccc}-2\\-3\\4\end{array}\right]-\left[\begin{array}{ccc}1\\-1\\3\end{array}\right]+3\left[\begin{array}{ccc}4\\5\\-3\end{array}\right]\\\\\\2a-b+3c=\left[\begin{array}{ccc}-4\\-6\\8\end{array}\right]-\left[\begin{array}{ccc}1\\-1\\3\end{array}\right]+\left[\begin{array}{ccc}12\\15\\-9\end{array}\right]\\\\\\2a-b+3c=\left[\begin{array}{ccc}7\\10\\-4\end{array}\right][/tex]
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