2. Выберите правильное равенство:

a) 3⋅3⋅3⋅3⋅3⋅3⋅3 =

b) 3⋅3⋅3⋅3⋅3⋅3⋅3 =

c) 3⋅3⋅3⋅3⋅3⋅3⋅3 =

d) 3⋅3⋅3⋅3⋅3⋅3⋅3 = [1] ​

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