1.

For two vectors A and B, what is A.B (if they have angle α between them)?a) |A||B| cosαb) |A||B|c) √(|A||B

A. |A||B| cosα
B. |A||B|
C. √(|A||B|) cosα
D. |A||B| sinα
Answer» B. |A||B|


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