file:///var/mobile/Library/SMS/Atta chments/f7/07/D380A9CF-77D5-429D-BF FC-32DCDDC6E8CE/62940696340__9618D6 E3-8F7B-48A4-9BB9-9B05201F96A2.HEIC

what is this for?

54

step-by-step explanation:

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b