Same chapter3 marksDifficulty: Medium
If A = [[1, 2], [3, 4]], find its transpose and state its order.
Matrices
3 marksDifficulty: Medium
Find the product [[1, 2], [3, 4]] × [[2, 0], [1, 3]].
Original Khojo Papers practice question — not from a past board paper.
Answer
[[4, 6], [10, 12]]
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Each entry is a row of the first matrix multiplied into a column of the second: 1×2 + 2×1 = 4, 1×0 + 2×3 = 6, 3×2 + 4×1 = 10 and 3×0 + 4×3 = 12.
Related questions
From the same topic and chapter, at a similar level.
Same chapter3 marksDifficulty: Medium
If A = [[2, 1], [0, 3]] and I is the 2 × 2 identity matrix, find AI and IA and state what this shows.
Matrices
Same chapter3 marksDifficulty: Medium
Find x and y if [[x, 3], [2, y]] = [[4, 3], [2, 5]].
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Same chapter3 marksDifficulty: Medium
If A = [[3, 1], [0, 2]], find A2.
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Same chapter2 marksDifficulty: Medium
Give an example to show that matrix multiplication is not commutative.
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Same chapter1 markDifficulty: Medium
If A is of order 3 × 2 and B is of order 2 × 3, then BA is of order:
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