liczba 1 i 4/7 podniesiona do kwadratu wynosi
a)1 i 23/49
b)2 i 23/49
c)2 i 25/49
d)2 i 20/49
odp.: b)
1⁴/₇=(¹¹/₇)²=¹²¹/₄₉=2²³/₄₉
więc odp. b)
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odp.: b)
1⁴/₇=(¹¹/₇)²=¹²¹/₄₉=2²³/₄₉
więc odp. b)