Let A and B be nonempty sets of real numbers. If sup A exists then: а. sup (A U B) exists if sup(B) exists b. the set A NB is bounded С. the set A is bounded d. sup(A) < sup (A U B)

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Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.