JEE Main 2017Session, Shift 1MathematicsMediumMatrices and Determinants245× since 2002If A=[2−3−41]A = \left[ {\matrix{ 2 & { - 3} \cr { - 4} & 1 \cr } } \right]A=[2−4−31], then adj(3A² + 12A) is equal toAOption A. [51638472]\left[ {\matrix{ {51} & {63} \cr {84} & {72} \cr } } \right][51846372]BOption B. [51846372]\left[ {\matrix{ {51} & {84} \cr {63} & {72} \cr } } \right][51638472]COption C. [72−63−8451]\left[ {\matrix{ {72} & {-63} \cr {-84} & {51} \cr } } \right][72−84−6351]DOption D. [72−84−6351]\left[ {\matrix{ {72} & {-84} \cr {-63} & {51} \cr } } \right][72−63−8451]CheckSkip · show solution
