Question 6 of 20 Suppose an isosceles triangle ABC has A= ? and b = c = 3. What is the
length of a??
A. 32(2-2)
B. 32(152 - 2)
C. 34(2 + 2)
D. 322

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

ab will be equal to