A) \[x=1,\,2\]
B) \[x=2,\,3\]
C) \[x=1,\,p,\,2\]
D) \[x=1,\,2,\,-p\]
Correct Answer: A
Solution :
\[A=\left| \begin{matrix} 1 & 1 & x \\ p+1 & p+1 & p+x \\ 3 & x+1 & x+2 \\ \end{matrix}\, \right|\] \[|A|\,=0\,\text{for}\,x=1\,\text{ and }2\]. So option (a) is correct.You need to login to perform this action.
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