Vektor-vektor u, v, dan w tak nol dan |u|=|v|

Vektor-vektor u, v, dan w tak nol dan $$\left | u \right |=\left | v \right |\\$$. Jika $$\left | v-w \right | = \left | u-w \right |$$, maka

A. $$u.v = \left | w \right |$$ B. $$w=\frac{2u+3v}{5}$$ C. $$\left | u-w \right | = \left | v \right |$$ D. u – v tegak lurus w E. u + v tegak lurus w

D. u – v tegak lurus w