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The product of `13xx5` matrix & `5xx13` matrix contains a variable entry `x` in exactly 2 places. If `D(x)` is the determinant of the matrix product such that `D(0)=1, D(-1)=1`& `D(2)=7` which of the following is/are correct?A. `D(-2)=3`B. `D(1)=3`C. `D(-3)=7`D. `D(1)=2` |
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Answer» Correct Answer - A::B::C `D(x)` can at most be polymial of degree 2 `D(x)=ax^(2)+bx+c` `D(x)=x^(2)+x+1` `D(1)=3` `D(-2)=4-2+1=3` `D(-3)=9-3+1=7` |
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