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 0.8^n

Lösung

n = 1 \sum \infty 0. 8^{n}

Lösung

4

Schritte zur Lösung

n = 1 \sum \infty 0. 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 0. 8^{n} - 0. 8^{0}

n = 0 \sum \infty 0. 8^{n} = 5

= 5 - 0. 8^{0}

Vereinfache

= 4

Beliebte Beispiele

integral of (\sqrt[3]{x^5}+1/(3sqrt(x)))

\int (3 x^{5} + \frac{1}{3 x}) d x

integral of (sec^2(x))

\int (sec^{2} (x)) d x

integral of sin^3(2x)*cos(2x)

\int sin^{3} (2 x) \cdot cos (2 x) d x

integral from 1 to infinity of 4/(x-1)

\int_{1}^{\infty} \frac{4}{x - 1} d x

derivative 800x-0.1x^2

d er i v a t i v e 800 x - 0.1 x^{2}