Suppose you are standing on one bank of the river. a tree on the other side of the river is known to be 150ft tall. a line from the top of the tree to the ground at your feet makes an angle of 11 degrees with the ground. how far from you is the base of the tree.

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

whatare you sayig

step-by-step explanation: