If a=5i+2j, b=2i-3j, then |a+2b|= | ClassNotes

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If a=5i+2j, b=2i-3j, then |a+2b|= | ClassNotes

E

Editor

Sep 18, 2022

If a=5i+2j, b=2i-3j, then |a+2b|=

Difficulty: Easy

A:

\sqrt{21}

B:

\sqrt{97}

C:

\sqrt{39}

D:

None

ID: 63273dbaca83163ac3a132b3