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Mathematics 11 Online
OpenStudy (anonymous):

State the dimensions of the matrix. Identify the indicated element. http://media.education2020.com/evresources/648-04-01-00-00_files/i0130000.jpg

jimthompson5910 (jim_thompson5910):

a21 is the element in row 2, column 1

jimthompson5910 (jim_thompson5910):

the dimensions are of the form R x C where R is the number of rows, C is the number of columns so say you have a matrix with 10 rows and 4 columns, then R = 10 and C = 4 giving you the dimensions of 10 x 4

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