Boy Mow Chau's answer to Anika's Junior College 2 H2 Maths Singapore question.
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since we do not know angle between a & b, and angle between b & c, our scalar product cannot involve a.b or b.c, and we have to think of a way to involve only a.c , a.a , b.b and c.c.
Date Posted:
3 years ago
Alright I got the steps.. thank you so much !! :)
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