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Question Number 18909 by Nayon last updated on 01/Aug/17

W h a t d o e s \underset{}{a} . \underset{}{b} a n d \underset{}{a} \times \underset{}{b} m e a n s ?

s o m e o n e p l e a s e e x p l a i n i t .

Commented by mrW1 last updated on 02/Aug/17

please read a book or an internet site

about vectors .

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