Toán Lớp 7: Tính (1/38-1).(1/37-1).(1/36-1)….(1/32-1)
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Toán Lớp 7: Tính (1/38-1).(1/37-1).(1/36-1)….(1/32-1)
Comments ( 1 )
= -37/38 . -36/37 . -35/36 …. -31/32
= (-37.36.35….31)/(38.37.36…32)
= (-1.31)/38
= -31/1184