4. ABCD is an isosceles trapezium (Fig. 11.31) with AB and DC as parallel sides.
Perpendiculars DE and CF are drawn on
AB. Check whether AADE E ABCF or not.
D
C С
А
E
F
B.
Fig. 11.31

2133131312

Step-by-step explanation:

adsgfgfsaddaddsd

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