If A = [[1, 3], [2, 4]] and B = [[−1, 2], [0, 1]], then the element c₂₁ of the matrix C = AB is: A. −2 B. 2 C. 1 D. 4 Answer: A) −2 Explanation: C = AB = [[1×(−1)+3×0, 1×2+3×1], [2×(−1)+4×0, 2×2+4×1]] = [[−1, 5], [−2, 8]]. c₂₁ is the element in row 2, column 1, which is −2.

imo class 12 matrices

If A = [[1, 3], [2, 4]] and B = [[−1, 2], [0, 1]], then the element c₂₁ of the matrix C = AB is:

VAVidaara Admin Asked 6d ago 0 views 0 answers

If A = [[1, 3], [2, 4]] and B = [[−1, 2], [0, 1]], then the element c₂₁ of the matrix C = AB is:

Answer: A) −2

Explanation: C = AB = [[1×(−1)+3×0, 1×2+3×1], [2×(−1)+4×0, 2×2+4×1]] = [[−1, 5], [−2, 8]]. c₂₁ is the element in row 2, column 1, which is −2.

No comments yet — start the discussion.