a) 1/2 * 64 = 32
b) 1 - (-1) - 1 = 1 + 1 - 1 = 1
c) (-5/2)^3 = -125/8 = - 15 5/8
d) (0,2 + 0,04) : (9 + 1) = 0,24 : 10 = 0,024
e)
[tex]\frac{6^6 * 6}{3^6} = \frac{6^6}{3^6} * 6 = (6:3)^6 * 6 = 2^6 * 6 = 2^6 * 2 * 3 = 2^7 * 3 = \\ \\= 128 * 3 = 384\\[/tex]
f)
[tex]\frac{7^8}{7^6 * 2^6} = \frac{7^2}{2^6} = \frac{49}{64}[/tex]
:)
