Matematyykka...Na jutro potrzebuje ..Pilne
3 przykłady ... na załącznikach są 4 ale podpunkt D mam już ;)
a) 8 : (-8/5) - (9/2 * 5/3 - 15/4) 8 * (-5/8) - (30/4 - 15/4) -5 - 15/4 -20/4 - 15/4
------------------------------------ = ------------------------------- = ---------- = ------------- =
1/2 * 5/2 5/4 5/4 5/4
-35/4 * 4/5 = -7
b)1/2 - 2/5 : (5/3 - 11/5) 1/2 - 2/5 : (-8/15) 1/2 + 3/4 5/4
------------------------------ = -----------------------=------------- = ----- = 5/4 * (-4/3)=-5/3
2/3 * 3/2 - 3/4 -3/4 -3/4 -3/4
c)(2/3 * 27/10 - 7/15 * 1/3) : 1/25 * (3/4 - 1/6) (9/5 - 7/45) : 1/25 * 7/12 74/45 :
------------------------------------------------------ = ----------------------------- = ---------
8/15 + 3/10 16/30 + 9/30 25/30
1/25 * 7/12 370/9 * 7/12 259/6
---------------- = --------------- = ------ = 259/6 * 6/5 = 259/5 = 51,8
5/6 5/6
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a) 8 : (-8/5) - (9/2 * 5/3 - 15/4) 8 * (-5/8) - (30/4 - 15/4) -5 - 15/4 -20/4 - 15/4
------------------------------------ = ------------------------------- = ---------- = ------------- =
1/2 * 5/2 5/4 5/4 5/4
-35/4 * 4/5 = -7
b)1/2 - 2/5 : (5/3 - 11/5) 1/2 - 2/5 : (-8/15) 1/2 + 3/4 5/4
------------------------------ = -----------------------=------------- = ----- = 5/4 * (-4/3)=-5/3
2/3 * 3/2 - 3/4 -3/4 -3/4 -3/4
c)(2/3 * 27/10 - 7/15 * 1/3) : 1/25 * (3/4 - 1/6) (9/5 - 7/45) : 1/25 * 7/12 74/45 :
------------------------------------------------------ = ----------------------------- = ---------
8/15 + 3/10 16/30 + 9/30 25/30
1/25 * 7/12 370/9 * 7/12 259/6
---------------- = --------------- = ------ = 259/6 * 6/5 = 259/5 = 51,8
5/6 5/6