Problem 52030. Stacking vectors into a matrix

Given a 4x1 vector a, and a 2x2 matrix b, create a matrix M in which the first 2 rows are each identical to a and the last two rows correspond to two copies of the matrix b stacked next to each other.
In other words, if a = [ ] and b = [ ] , then
M = [ ].
Solve

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72.73% Correct | 27.27% Incorrect
Last Solution submitted on Jan 07, 2026

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concatenation matrix

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