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43Fafinu
@43Fafinu
July 2022
2
8
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Решите пж 7-2/7+2-7+2/7-2
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lgolovizina
7 - 2/7 +2 -7 +2/7 -2 = (7-7)+(2/7-2/7) + (2-2) = 0+0+0 = 0
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Sergey1888888
(7-2)/(7+2)-(7+2)/(7-2)=5/9 - 9/5 = (25-81)/45 = -56/45
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lgolovizina
А откуда скобки?
Sergey1888888
Я предположил, что это разность двух дробей.
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