S2/15/Q8/ii | STEP Support Programme

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Submitted by spacedino101 on Sun, 03/19/2017 - 19:51

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Discussion 2016-2017

https://www.thestudentroom.co.uk/showthread.php?t=3411533#post57155081

How do you deduce that a=r3(r1-r2), b = ..., c = ... ?

Thanks!

Try writing out $R - Q$ and

Permalink Submitted by Zacken on Sun, 03/19/2017 - 21:20

Try writing out $R - Q$ and $P - Q$ in vector form, then use the equation.

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