JEE Math Practice Question
If $$\Delta $$ = $$\left| {\begin{matrix} {x - 2} & {2x - 3} & {3x - 4} \\ {2x - 3} & {3x - 4} & {4x - 5} \\ {3x - 5} & {5x - 8} & {10x - 17} \\ \end{matrix} } \right|$$ = Ax3 + Bx2 + Cx + D, then B + C is equal to :
- A.-1
- B.-3
- C.9
- D.1
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