Brainlet filter

>every time you take a test that uses the phrase "closed form"

never took a test that used that phrase, because i don't take brainlet classes

Not OP but holy shit, you know what he fucking means.

By closed form he means "remove the sum sign". It is a nice problem and so far I don't see a trivial answer.

>every time you take a test that uses the phrase "closed form"
Yeah, the formula in the OP is an example of a closed form equation similar to what you'd see on a test. What are you even trying to say? Retard

k=0

sin(k) = sin(0) = 0

fuck, then I don't find it possible here

no bully pls, I'm a hexagon specialist

>remove the sum sign
[eqn] \sin(0)+\sin(1)+...+\sin(N-1)+\sin(N) [/eqn]

good lad

answer is here OP

>Problem #1: Evaluate the integral of cos(x) from 0 to pi
>Answer: It's already in closed form XD

It's just not as clever as you think and it gets tiring seeing it over and over when people would rather be pedants than just solve the actual problem

do you want an interpolation?

>I am not afraid of derailing a good thread and showing I have the worst type of autism.

Consider suicide.