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If #A= <8 ,-5 ,-3 ># and #B= <5 ,4 ,-9 >#, what is #A*B -||A|| ||B||#?

1 Answer

A. S. Adikesavan

Feb 23, 2016

47 #-# #sqrt#11956 = #-# 62.3435, nearly.

Explanation:

A.B is the cross product of the components = 40 #-# 20 + 27 = 47.

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