Find the sum of the series: the problem looks like this, a 4 over the big E looking thing (which I can't show at this time) i = -1 below, 6i - 5 right next to it.

Question

Find the sum of the series:  the problem looks like this, a 4 over the big E looking thing (which I can't show at this time) i = -1 below, 6i - 5 right next to it.

anonymous · Answer

$$\sum_{}^{4}( 6i-5), i = \sqrt{-1}?$$

anonymous · Answer

$$\sum_{i=1}^{4}$$ 6i - 5

anonymous · Answer

The 6i - 5 is right next to it not below it

anonymous · Answer

(6*1-5) +(6*2-5) +(6*3-5) +(6*4-5) = 40

anonymous · Answer

No wonder! I was looking everywhere on how to solve these type of problems. Thank you, so the answer comes out to be 40 correct?

anonymous · Answer

yup

anonymous · Answer

Thanks again :D

anonymous · Answer

the "big e" is called Sigma, remember sigma for SUM, have fun

anonymous · Answer

Sigma, got it