Mister Exam

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Sum of series:
1/n^2
(3^n+4^n)/12^n
cos(2*n)/n^2
-1
Derivative of:
-1
Integral of d{x}:
-1
Limit of the function:
-1
Identical expressions
- one
minus 1
minus one
Similar expressions
1

Sum of series/ -1

Sum of series -1

The solution

You have entered [src]

  12    
 __     
 \ `    
  )   -1
 /_,    
n = 1

$$\sum_{n=1}^{12} -1$$

Sum(-1, (n, 1, 12))

The rate of convergence of the power series

The answer [src]

-12

$$-12$$

-12

Numerical answer [src]

-12.0000000000000000000000000000

-12.0000000000000000000000000000

The graph

Sum of series -1

Examples of finding the sum of a series

The Sum of the Power Series
```
x^n/n
```
```
(x-1)^n
```
Factorial
```
1/2^(n!)
```
```
n^2/n!
```
```
x^n/n!
```
```
k!/(n!*(n+k)!)
```
Flint Hills Series
```
csc(n)^2/n^3
```
Basel problem
```
1/n^2
```
```
1/n^4
```
```
1/n^6
```
Harmonic series
```
1/n
```
Grandi's series
```
(-1)^n
```
Alternating series
```
(-1)^(n + 1)/n
```
```
(n + 2)*(-1)^(n - 1)
```
```
(3*n - 1)/(-5)^n
```
```
(-1)^(n - 1)*n/(6*n - 5)
```
Newton–Mercator series
```
(-1)^(n + 1)/n*x^n
```
Exam the series for convergence
```
(3*n - 1)/(-5)^n
```