JEE Main 2013Session, Shift 1MathematicsMediumMatrices and Determinants245× since 2002If P=[1α3133244]P = \left[ {\matrix{ 1 & \alpha & 3 \cr 1 & 3 & 3 \cr 2 & 4 & 4 \cr } } \right]P=112α34334 is the adjoint of a 3×33 \times 33×3 matrix AAA and ∣A∣=4,\left| A \right| = 4,∣A∣=4, then α\alphaα is equal to :AOption A. 444BOption B. 111111COption C. 555DOption D. 000CheckSkip · show solution
