Evaluate -2+(-3) +4- (-3) - 5.

-3

Step-by-step explanation:

Solution:

-2 + (-3) + 4 - (-3) - 5

= -2 - 3 + 4 + 3 - 5

= 7 - 10

Therefore,  -3

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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