Question

calculați 1+1/2+1/2²+....+1/2²⁴​

Answer 1

suma unei progresii geomtrice cu ratia 1/2 , primul termen 1 si numarul de elemente 25

$S=\frac{1(1-(\frac{1}{2})^{25}) }{1-\frac{1}{2} }$