A) \[\left| \frac{x+y-2}{7} \right|\]
B) \[\left| \frac{x-y+2}{2} \right|\]
C) \[\left| \frac{x-y-2}{7} \right|\]
D) None of these
Correct Answer: A
Solution :
\[\frac{\Delta \,PBC}{\Delta \,ABC}=\left| \frac{[-3(-2-y)+4(y-5)+x(5+2)]}{[6\,(5+2)-3(-2-3)+4(3-5)]} \right|\] \[=\left| \frac{7x+7y-14}{49} \right|=\left| \frac{x+y-2}{7} \right|\].You need to login to perform this action.
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