TEMAT : liczby i wyrazenia algebraiczne :
oblicz -
d) (1/3) -1 *(1/3)-2
e) (2/5) -3 : (-2/5) -2
f) ((0,2)-1)-3
d) (1/3) -1 *(1/3)-2= 1/3 -1/3*2= 1/3 -2/3= -1/3
e) (2/5) -3 : (-2/5) -2= 2/5 -3 * (-5/2) - 2 =2/5 + 15/2 - 2 =0,10+ 0,30-2 =
-0,60
f) ((0,2)-1)-3= (-0,2)-3= -0,6
1/3 - 1* 1/3 - 2 = 1/3 - 1/3 - 2 = -2
(2/5) -3 : (-2/5) -2 = 2/5 - 3 * (-5/2) -2 = 2/5 + 15/2 - 2 = 4/10 + 75/10 - 2 = 79/10 - 2 = 70 9/10 - 2 = 68 9/10
f) ((0,2)-1)-3 = -0,8 - 3 = -3,8
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d) (1/3) -1 *(1/3)-2= 1/3 -1/3*2= 1/3 -2/3= -1/3
e) (2/5) -3 : (-2/5) -2= 2/5 -3 * (-5/2) - 2 =2/5 + 15/2 - 2 =0,10+ 0,30-2 =
-0,60
f) ((0,2)-1)-3= (-0,2)-3= -0,6
1/3 - 1* 1/3 - 2 = 1/3 - 1/3 - 2 = -2
(2/5) -3 : (-2/5) -2 = 2/5 - 3 * (-5/2) -2 = 2/5 + 15/2 - 2 = 4/10 + 75/10 - 2 = 79/10 - 2 = 70 9/10 - 2 = 68 9/10
f) ((0,2)-1)-3 = -0,8 - 3 = -3,8