a 1/2 x [(-1)^8 + {-1)^8] b (-3 1/3)^3 x 0,3^4-(-1/2)^3 x (1 1/3)^2 c (1 1/3 )^3 (-3 3/4)^2 : 3 - (1/3)^2 d (-0,3)^2 : 0,1 - 0,2^3 x (2 1/2)^2 e)(-0,1)^4 x 20^3 + (1 1/2)^3 : (-0,3)^2 Legenda: ^ potęga / kreska ułamkowa x znak mnożenia
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a) 1
b) 2,4
c) 11 13/17
d)7 23/24
e) 38 3/10
powinno być dobrze
a) 1/2 *[(-1)^8 +(-1)^8] = 1/2 * [1+1] = 1/2 * 2 = 2/2 = 1
b) (-3i1/3)^3 *0,3^4 -(-1/2)^3 *(1i1/3)^2 =
( -10/3)^3 *0,0081-(-1/8) * (4/3)^2 =
(-1000/27) * 81/10000 +1/8 *16/9 =
( -1/1) * 3/10 + 1/1 *2/9 =
-3/10 + 2/9 = -27/90 + 20/90= -7/90
c) (1i1/3)^3 (-3i3/4)^2: 3 -(1/3)^2 =
(4/3)^3 *(-15/4)^2 :3 - 1/9 =
64/27 * 225/16 ; 3 - 1/9 =
4/3 * 25/1 : 3 -1/9=
100/3 *1/3 -1/9 =
100/9 - 1/9 = 99/9 = 11
d) (-0,3)^2 : 0,1 - 0,2^3 *(2i1/2)^2 =
0,09 : 0,1 - 0,008 * ( 2,5)^2 =
0,9 - 0,008 * 6,25 = 0,9 - 0,05 = 0,85
e) (-0,1)^4 * 20^3 + (1i1/2)^3 : (-0,3)^2 =
0,0001 * 8000 + (1,5)^3 : 0,09 =
0,8 + 3,375 : 0,09 = 0,8 + 37,5 = 38,3