$$$\left\langle 3, 3, -1\right\rangle - \left\langle \frac{2}{3}, \frac{2}{3}, \frac{4}{3}\right\rangle$$$
사용자 입력
$$$\left\langle 3, 3, -1\right\rangle - \left\langle \frac{2}{3}, \frac{2}{3}, \frac{4}{3}\right\rangle$$$을(를) 계산하세요.
풀이
$$$\left\langle {\color{Fuchsia}3}, {\color{DarkBlue}3}, {\color{BlueViolet}-1}\right\rangle - \left\langle {\color{Fuchsia}\frac{2}{3}}, {\color{DarkBlue}\frac{2}{3}}, {\color{BlueViolet}\frac{4}{3}}\right\rangle = \left\langle {\color{Fuchsia}\left(3\right)} - {\color{Fuchsia}\left(\frac{2}{3}\right)}, {\color{DarkBlue}\left(3\right)} - {\color{DarkBlue}\left(\frac{2}{3}\right)}, {\color{BlueViolet}\left(-1\right)} - {\color{BlueViolet}\left(\frac{4}{3}\right)}\right\rangle = \left\langle \frac{7}{3}, \frac{7}{3}, - \frac{7}{3}\right\rangle$$$
정답
$$$\left\langle 3, 3, -1\right\rangle - \left\langle \frac{2}{3}, \frac{2}{3}, \frac{4}{3}\right\rangle = \left\langle \frac{7}{3}, \frac{7}{3}, - \frac{7}{3}\right\rangle\approx \left\langle 2.333333333333333, 2.333333333333333, -2.333333333333333\right\rangle$$$A