Question

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

Answer 1

$1 - 2 + 2 \times 2 - 2 \times 2 \times 2 + ... + 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 \times 2 = 1095$

Answer 2

Am atasat o rezolvare.