The matrix <math><mrow><mo>[</mo><mtable><mtr><mtd><mn>4</mn

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15 + 4 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.

The matrix [4646]4&6 \\ 4&6 \\ \end{bmatrix} is:

Singular matrix

Null matrix

Null matrix

Diagonal matrix