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10× (-1) la puterea 10 11×(-1) la puterea 11 12×(-1) la puterea 12 ... 2019×(-1)la puterea 2029 2020×(-1)la puterea 2020​

Răspuns :

Răspuns:

10×1=10

11×(-1)=-11

12×1=12

2019×(-1)=-2019

2020×1=2020