## Exam Question: what is relation between vectors AB, AC, BC?

Trigonometric ratios and functions, the unit circle, inverse trig functions, identities, trig graphs, etc.
Jibyte
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### Exam Question: what is relation between vectors AB, AC, BC?

Hi all,

I have just had a proper GCSE exam and i received a question which i did not understand. I was hoping someone here could shed some light on it for me. The Question was worth 4 marks 1 for part A and 3 for part B.

Part A.
If a is vector AB and b is vector AC what relation is vector BC to them? (or something similar.)

Part B

Show that 1/2(3AB + 2AC) was equal to the vector AP

stapel_eliz
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At a guess, the relationship was probably vector addition or subtraction...?

Without specifics, I'm not sure that anything can be said regarding your second question. Sorry.

Jibyte
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Joined: Mon Jun 01, 2009 8:20 pm
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### Re: Exam Question: what is relation between vectors AB, AC, BC?

Thats ok. I may have to ask my teacher at school. thanks anyway though.