Odpowiedzi

2009-11-29T17:13:04+01:00
-4,75*[7/3:[(-1,4)]-3/5+5/8=
= (-19/4)[ 7/3 :(-7/5)] -3/5 +5/8 =
= (-19/4)[ 7/3*(-5/7)] -49/40 =
= (-19/4)[ -5/3] -49/40=
= (-95/12) - 49/40=
= (-950/120 - 1470/120 =
= -2420/120= -242/12
= -121/6
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2009-11-29T18:45:24+01:00
-4,75*[7/3:[(-1,4)]-3/5+5/8 =
-4,75*[7/3*[(-10/14)]-3/5+5/8=
-4,75*[-5/3]-3/5+5/8=
-19/4*[-5/3]-24/40+25/40 =
95/12+1/40=
950/120+3/120 =
953/120 =
7 113/120

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