1.

For a given 2×2 matrix A, it is observed thatA∣∣∣1−1∣∣∣=−1∣∣∣1−1∣∣∣ and A∣∣∣1−2∣∣∣=−2∣∣∣1−2∣∣∣ then the matrix A is

Answer»

For a given 2×2 matrix A, it is observed that

A11=111 and A12=212 then the matrix A is



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