Question

oblicz :

a) -1 1/4 razy (-4) b) -6 2/3:2 c) -0,2 razy (-0,2) d) -3 1/3 razy (-3) e) (-3) do potęgi drugiej razy 1/3 f) (1/3) do potęgi 2 razy (-9) g) -6 do potęgi 2 : 1/2 h) 3 3/4:(1,25) do potęgi 2

Answer 1

a) -1 1/4 * (-4) = -5/4 * (-4) = 5

b) -6 2/3 : 2 = -20/3 * 1/2 = -10/3 = -3 1/3

c) -0,2 * (-0,2) = 0,04

d) -3 1/3 * (-3) = -10/3 *(-3) = 10

e) (-3)^2 * 1/3 = 9* 1/3 = 3

f) (1/3)^2 * (-9) = 1/9 * (-9) = -1

g) (-6)^2 : 1/2 = 36 : 1/2 = 72

h) 3 3/4 : (1,25)^2 = 3 3/4 : (1 25/100)^2 = 3 3/4 : (125/100)^2 = 3 3/4 : (5/4)^2 = 3 3/4 : 25/16 = 15/4 * 16/25 = 6/5 = 1 1/5