Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ ¹ ² ³ °
 

You are not logged in. Post a replyTopic review (newest first)
n is the number of iterations.
It is "LaTeX" and I don't know it very well.
ryos, what's n?
I think this one is cleaner:
Is this it? Code:[math]\sum_{k=1}^\infty2^{k+1}2^{k1}[/math]
2^(k+1)  2^(k1)
I couldn't get that to work out. Are you sure?
Don't ask me how I got this, I couldn't tell you. Just a bunch of guessing and checking:
I know all that, it's just this problem I can't get.
n < end of the sequence
I'm new to sigma notation and I'm supposed to put 3 + 6+ 12+ 24 + 48 in it, but I really can't figure out how to do it. I've tried for so long, but nothing I try works. Can come help? 