Question

Evaluate .

Answer 1

\[\sum_{n=1}^{4}(2n+0.5)\]

Answer 2

Replace n with 1. What do you get?

Answer 3

2.5

Answer 4

Replace n with 2. What do you get?

Answer 5

4.5

Answer 6

Replace n with 3. What do you get?

Answer 7

6.5

Answer 8

Replace n with 4. What do you get?

Answer 9

8.5

Answer 10

Add those 4 numbers and you are done.

Answer 11

thanks

Answer 12

yw

Answer 13

That was simple wan't it :)
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