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$$$\frac{1}{5}\cdot \left\langle 3, 4\right\rangle$$$
您的输入
计算 $$$\frac{1}{5}\cdot \left\langle 3, 4\right\rangle$$$。
解答
将向量的每个坐标乘以该标量：
$$${\color{Chartreuse}\left(\frac{1}{5}\right)}\cdot \left\langle 3, 4\right\rangle = \left\langle {\color{Chartreuse}\left(\frac{1}{5}\right)}\cdot \left(3\right), {\color{Chartreuse}\left(\frac{1}{5}\right)}\cdot \left(4\right)\right\rangle = \left\langle \frac{3}{5}, \frac{4}{5}\right\rangle$$$
答案
$$$\frac{1}{5}\cdot \left\langle 3, 4\right\rangle = \left\langle \frac{3}{5}, \frac{4}{5}\right\rangle = \left\langle 0.6, 0.8\right\rangle$$$A
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