найдите значение дроби:
a-2
a ------дробь,при а= 2½
(а-2)/2
при а = 2 1/2
(2 1/2-2)/2=(5/2-2)/2=(5/2-4/2)/2=1/2:2=1/2*1/2=1/4
(а-2)/2 приа=21(2 1/2-2)/2=(5/2-2)/2=(5/2-4/2)/2=1/2:2=1/2*1/2=1/4
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Verified answer
(а-2)/2
при а = 2 1/2
(2 1/2-2)/2=(5/2-2)/2=(5/2-4/2)/2=1/2:2=1/2*1/2=1/4
Verified answer
(а-2)/2 приа=21
(2 1/2-2)/2=(5/2-2)/2=(5/2-4/2)/2=1/2:2=1/2*1/2=1/4