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Calculati suma S=1-2+2^2-2^3+...+2^12

Răspuns :


[tex]1 - 2 + 2 \times 2 - 2 \times 2 \times 2 + ... + 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 = 1095[/tex]

Am atasat o rezolvare.

Vezi imaginea LUCASELA