de

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Beliebt Rechnen >

sum from n=1 to infinity of (7/8)^n

Lösung

n = 1 \sum \infty (\frac{7}{8})^{n}

Lösung

7

Schritte zur Lösung

n = 1 \sum \infty (\frac{7}{8})^{n}

n = k \sum \infty (a_{n}) = n = 0 \sum \infty (a_{n}) - a_{0} - a_{1} - \dots a_{k - 1}

= n = 0 \sum \infty (\frac{7}{8})^{n} - (\frac{7}{8})^{0}

n = 0 \sum \infty (\frac{7}{8})^{n} = 8

= 8 - (\frac{7}{8})^{0}

Vereinfache

= 7

Beliebte Beispiele

integral of 5cos(5x)

\int 5 cos (5 x) d x

(\partial)/(\partial x)(V(x))

\frac{\partial}{\partial x} (V (x))

integral of sqrt(pi^2-x^2)

\int π^{2} - x^{2} d x

integral of (x^2+3)/(x^3+5x)

\int \frac{x ^{2} + 3}{x ^{3} + 5 x} d x

d/(dt)(Ae^{-t})

\frac{d}{d t} (A e^{- t})