If c=2i+j+k and d=-i+4j+2k, then [c-d]=

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If c=2i+j+k and d=-i+4j+2k, then [c-d]=

E

Editor

Sep 18, 2022

If c=2i+j+k and d=-i+4j+2k, then [c-d]=

Difficulty: Easy

A:

\sqrt{7}

B:

\sqrt{41}

C:

\sqrt{19}

D:

2\sqrt{7}

ID: 63273dbaca83163ac3a132bf