A)(-½):(-2)-⁵/₃₆
-------------------+4:(-2,5)=
(-1):(-9)


b)-(6⁷/₁₂-3¹⁷/₃₆)×(-2,7)- 4¹/₃:0,65
-----------------------------------------------=
-3-(-4)


c)13,7+(-2⅗):0,5-1,5×6
----------------------------------=
(-⅓):3×(-9)


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Odpowiedzi

Najlepsza Odpowiedź!
2010-01-27T09:31:44+01:00
A)(-½):(-2)-⁵/₃₆
-------------------+4:(-2,5)=
(-1):(-90
[((-1/2)x(-1/2)-5/36)/1/9]+4:(-25/10)=
[(1/4-5/36)/1/9]+4x(-10/25)=
[(9/36-5/36)/1/9]-40/25=
[(4/36)/1/9]-40/25=
[4/36x9]-40/25=
36/36-1i15/25=
1-1i3/5=
=-3/5

b)-(6⁷/₁₂-3¹⁷/₃₆)×(-2,7)- 4¹/₃:0,65
-----------------------------------------------=
-3-(-4)
[-(6i21/36-3i17/36)x(-27/10)-13/3:65/100]/-3+4=
[-(3i4/36)x(-27/10)-13/3x20/13]/1=
[-3i1/9x(-27/10)-20/3]/1=
[-28/9x(-27/10)-6i2/3]/1=
[42/5-6i2/3]/1=
[8i2/5-6i2/3]/1=
[8i6/15-5i10/15]/1=
1i11/15x1=
=1i11/15


c)13,7+(-2⅗):0,5-1,5×6
----------------------------------=
(-⅓):3×(-9)
[13i7/10+(-13/5):5/10-15/10x6]/(-1/3):(-27)=
[13i7/10-26/5-9]/1/81=
[13i7/10-5i2/10-9]x81=
[13i7/10-14i2/10]x81=
-5/10x81=
-1/2x81=
-81/2=
=-40i1/2

[ ]-to wszystko co jest w tym nawiasie pisz w liczniku,a w mianowniku jest pod/