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Beliebt Rechnen >

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

Lösung

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

Lösung

1

Schritte zur Lösung

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

Teleskopreihen-Test anwenden:

1

= 1

Beliebte Beispiele

f(x)=(x^2+11x+24)/(x+8)

f (x) = \frac{x ^{2} + 11 x + 24}{x + 8}

(dx)/(dt)=sqrt(x)

\frac{d x}{d t} = x

(ln (x - 1))^{^{'}}

tangent y= x/((1+x^2))

t an g e n t y = \frac{x}{( 1 + x ^{2} )}

integral from-infinity to 3 of 1/(4+x^2)

\int_{- \infty}^{3} \frac{1}{4 + x ^{2}} d x