Oblicz srednia arytmetyczna liczb o,2k-3; 3,4k+5,5; 1,2k+1 oraz 3,2k-4
0,2k-3+ 3,4k+5,5+ 1,2k+1+ 3,2k-4 8k-0,5
-------------------------------------------- = ----------- = 2k-1/8
4 4
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0,2k-3+ 3,4k+5,5+ 1,2k+1+ 3,2k-4 8k-0,5
-------------------------------------------- = ----------- = 2k-1/8
4 4