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Ajutooor! DAU COROANA

Ajutooor DAU COROANA class=

Răspuns :

2ˣ = 2 +2+ 2² + 2³+ 2⁴ + ........2¹⁹⁶⁸ = 2²+2² + 2³ + 2⁴ +......+2¹⁹⁶⁸ =
= 2³ + 2³ + 2⁴ + ..........+ 2¹⁹⁶⁸ = 2⁴ + 2⁴ + .......+2¹⁹⁶⁸ =
= ..................= 2¹⁹⁶⁸ + 2¹⁹⁶⁸ = 2¹⁹⁶⁹
2ˣ  = 2¹⁹⁶⁹     x = 1969