n m n b x b (a x b) n n = b n+m = a x b n m 5 (a ) 2 3 = a nxm 2 = 2 x 2 x 2 x 2 x 2 3 4 2 x 2 x 2 3 5-3 = (2x2) = 2 2 3 2 = (2 ) = 2 2x3 = 2 6 = 2 Mat. Xi/ i hal. 1