What is the sum of the first n terms of this series?

4 + 6 + 8 + 10 + 12 + ⋯

Question

What is the sum of the first n terms of this series?

4 + 6 + 8 + 10 + 12 + ⋯

anonymous · Answer

attachment

danjs · Answer

notice when i=1 the term is 4, that will eliminate a couple answers off the bat

danjs · Answer

They are asking for a sum up to nth term... 

$$\sum_{1}^{n}$$

anonymous · Answer

so if it doesn't equal 4 then I should eliminate that answer?

danjs · Answer

Right, let i=1 and calculate the (  )  Quantity...

danjs · Answer

Notice that each term increases by 2, that helps choose... 

(  something  +2 )  maybe

anonymous · Answer

C?

danjs · Answer

yes, the third one, but i sorta gave you the answer with those two infos, sorry

anonymous · Answer

since it's n instead of the infinity symbol and it's 2+2

danjs · Answer

right, they want n terms, not the infinite sum

anonymous · Answer

I'm slow enough that I don't realize those things, lol. Thank you for your assistance!! xoxo.

danjs · Answer

no prob,, goodluck