Question

6
Σ (12 – 4 i)
i = 3

Answer 1

- 24

Explanation:

We have to get the value of the following sum as given.

`\sum_(3)^(6) (12-4i)`

This can be written in language as the summation of (12 -4i) where value of i ranges from 3 to 6.

`\sum_(3)^(6) (12-4i)`

= [12 - 4(3)] + [12 - 4(4)] + [12 - 4(5)] + [12 - 4(6)]

= 0 + [- 4] + [- 8] + [- 12]

= - 24 (Answer)