Title | Símbolo de sumatoria |
---|---|
Course | Matematica |
Institution | Escuela Superior Politécnica del Litoral |
Pages | 1 |
File Size | 31.6 KB |
File Type | |
Total Downloads | 70 |
Total Views | 178 |
Download Símbolo de sumatoria PDF
Evaluar el siguiente límite n
( )( ) 2
k 1− 2 ∑ n →∞ n lim
k=1
2 n
Solución : n
∑ k=1
( )( ) 1−
k2 n2
( )
[ ( )( )]
lim 2− 1 1+ 1 3 n n →∞ n
( )
(
)
(
n n n n n 2 n ( n+1 )( 2 n+1) 2 2 k2 2 2 2 2 1 ( k2 2 2 = ∑ 1− 2 = ∑ 1− ∑ 2 = ∑ 1− 3 ∑ k = (n)− 3 =2− 2 n 6 n k=1 n n k=1 n k=1 n n k=1 n k=1 n n n
2+
(
1 1 = lim 2− lim n n→∞ n→∞ 3
( )( )
2 2 4 ∴ lim ∑ 1− k 2 = n → ∞ k=1 n n 3
) ( lim ( 1+ 1n ) )( lim (2+ 1n ))=2− 31 ( 1+0) ( 2+ 0)=2− 31 ( 1 )( 2) =2− 23 = n→∞
n→ ∞...