A) 1
B) 3
C) 0
D) \[-1\]
Correct Answer: C
Solution :
\[\frac{a}{y-z}=\frac{b}{z-x}=\frac{c}{x-y}=k\] \[\Rightarrow \]\[a=k\,\,(y-z);\]\[b=k\,\,(z-x)\]\[\Rightarrow \]\[c=k\,\,(x-y)\] \[\therefore \]\[ax+by+cz=k\] \[(xy-xz+yz-xy+xz-yz)=0\]You need to login to perform this action.
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