A) \[-\,\,3pqr\]
B) \[pqr\]
C) \[2\,\,pqr\]
D) \[3\,\,pqr\]
Correct Answer: D
Solution :
Sum of the roots \[=\frac{-p+q+r}{5}\] \[\therefore \] \[-\frac{(p+q+r)}{5}=0\] \[\Rightarrow \] \[(p+q+r)=0\] \[\Rightarrow \] \[({{p}^{3}}+{{q}^{3}}+{{r}^{3}})=3pqr\]You need to login to perform this action.
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