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Beliebt Rechnen >

sum from n=0 to infinity of ((-1)/2)^n

Lösung

n = 0 \sum \infty (\frac{- 1}{2})^{n}

Lösung

\frac{2}{3}

+1

Dezimale

0.66666 \dots

Schritte zur Lösung

n = 0 \sum \infty (\frac{- 1}{2})^{n}

Geometrischen Test der Reihe anwenden:

\frac{2}{3}

= \frac{2}{3}

Beliebte Beispiele

tangent f(x)=4x(x^2-4x+5)^9,\at x=2

t an g e n t f (x) = 4 x (x^{2} - 4 x + 5)^{9}, at x = 2

derivative of 9e^{-4x}

\frac{d}{d x} (9 e^{- 4 x})

y^3(dy)/(dx)+x^3=0

y^{3} \frac{d y}{d x} + x^{3} = 0

(\partial)/(\partial y)(x^2-4xy-2y^2)

\frac{\partial}{\partial y} (x^{2} - 4 x y - 2 y^{2})

integral of (3x^2-6x+3)

\int (3 x^{2} - 6 x + 3) d x