MATHEMATICS 1. The angle of elevation of the top of a tree seen by a tall man is 60°. What is the height of
the tree, if the man is standing 16m away from it?
2
2. Simplifyzn +2
3x-1
3. Convert the following numbers to denary numbers.
(i) 642 sixteen (ii) 20CDsixteen (iii) 12AC8​

3x^3-x^2+6x-9

44

step-by-step explanation:

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