Determine by substitution, if 2 is the root of 3 x + 5= 11

Step-by-step explanation:

Just substitute x by 2 in the equation 3 x + 5 = 11 and see if we have equality

Since 3 (2) + 5 = 6 + 5 = 11 then 2 is a root of 3 x + 5= 11

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