What are Matrices MCQ | Linear Algebra for AI Multiple Choice Questions

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What is a matrix in linear algebra?

A. A vector

B. A one-dimensional array

C. A two-dimensional rectangular array of numbers

D. A scalar value

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What is the shape of a matrix with 3 rows and 5 columns?

A. 3,5

B. 5x3

C. 3x5

D. 3×5

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Which of the following is an identity matrix?

A. A matrix with all ones

B. A zero matrix

C. A diagonal matrix with ones on the main diagonal

D. A matrix with all entries equal to the identity scalar

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What is the transpose of a matrix?

A. Take the inverse

B. Reverse the order of columns

C. Swap rows and columns

D. Reverse the order of rows

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A square matrix has:

A. No zeros

B. Equal number of rows and columns

C. More columns than rows

D. More rows than columns

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