Question

Evaluate the series

Answer 1

The answer to evaluate the series is:

26

Answer 2

Answer:


`26`.

Explanation:

The given series is;


`\sum_(n=1)^(4)(n+4)`.

This series is finite and has few number of terms.

We can rewrite the expanded form to get;


`\sum_(n=1)^(4)(n+4)=(1+4)+(2+4)+(3+4)+(4+4)`.


`\sum_(n=1)^(4)(n+4)=5+6+7+8`.


`\sum_(n=1)^(4)(n+4)=26`.