October 2018 1 13 Report

Zauważ prawidłowość i uzupełnij zapisy :

1³=1²=1

1³+2³=(1+2)²=3²

1³+2³+3³=(1+2+3)²=...........

1³+2³+3³+4³=..........

1³+2³+3³+4³+5³=...........


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