Răspuns:
7
Explicație pas cu pas:
a = 2ⁿ⁺¹ •5ⁿ + 2021 ; n ∈ N ; n > 100
a = 2ⁿ⁺¹ •5ⁿ + 2021 = 2•2ⁿ•5ⁿ + 2021 = 2•(2•5)ⁿ + 2021
a = 2•10ⁿ + 2021
Suma cifrelor numarului a = 2+0+2+0+2+1 = 7
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Răspuns:
7
Explicație pas cu pas:
a = 2ⁿ⁺¹ •5ⁿ + 2021 ; n ∈ N ; n > 100
a = 2ⁿ⁺¹ •5ⁿ + 2021 = 2•2ⁿ•5ⁿ + 2021 = 2•(2•5)ⁿ + 2021
a = 2•10ⁿ + 2021
Suma cifrelor numarului a = 2+0+2+0+2+1 = 7
#copaceibrainly