A) A. P.
B) G. P.
C) H. P.
D) None of these
Correct Answer: B
Solution :
Let a,b,c are in G.P. and assume \[{{A}_{13}}=-5\] \[\therefore \,\,\,\,\,A=\left| \,\begin{matrix} 1 & 2 & 3 \\ 2 & 4 & 6 \\ 3 & 6 & 0 \\ \end{matrix}\, \right|\,\,=\,\,0\] .You need to login to perform this action.
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