$$$\left\langle 3, 3, -1\right\rangle - \left\langle \frac{2}{3}, \frac{2}{3}, \frac{4}{3}\right\rangle$$$
您的输入
计算 $$$\left\langle 3, 3, -1\right\rangle - \left\langle \frac{2}{3}, \frac{2}{3}, \frac{4}{3}\right\rangle$$$。
解答
$$$\left\langle {\color{Fuchsia}3}, {\color{Purple}3}, {\color{DarkMagenta}-1}\right\rangle - \left\langle {\color{Fuchsia}\frac{2}{3}}, {\color{Purple}\frac{2}{3}}, {\color{DarkMagenta}\frac{4}{3}}\right\rangle = \left\langle {\color{Fuchsia}\left(3\right)} - {\color{Fuchsia}\left(\frac{2}{3}\right)}, {\color{Purple}\left(3\right)} - {\color{Purple}\left(\frac{2}{3}\right)}, {\color{DarkMagenta}\left(-1\right)} - {\color{DarkMagenta}\left(\frac{4}{3}\right)}\right\rangle = \left\langle \frac{7}{3}, \frac{7}{3}, - \frac{7}{3}\right\rangle$$$
答案
$$$\left\langle 3, 3, -1\right\rangle - \left\langle \frac{2}{3}, \frac{2}{3}, \frac{4}{3}\right\rangle = \left\langle \frac{7}{3}, \frac{7}{3}, - \frac{7}{3}\right\rangle\approx \left\langle 2.333333333333333, 2.333333333333333, -2.333333333333333\right\rangle$$$A