Simplify the following expression.
(-4 + 7) + (-3 + : )
a. -7 + 8i
b. -1 + 61
c. -1 + 8
d. 7 + 6i
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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

where did you get them? if you picked from the grass, is is probably poisonous.

step-by-step explanation: