Math Is Fun Forum
Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °
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#1 2006-12-18 03:08:36
- nareshshah
- Guest
Can someone help me with these two sums in complex numbers
1.∑cos nθ/n!
2.∑cos nθ/2^n
#2 2006-12-19 05:59:09
- fgarb
- Member
- Registered: 2006-03-03
- Posts: 89
Re: Can someone help me with these two sums in complex numbers
Could you add parentheses please? Otherwise I'm not sure what exactly the questions are. Not sure if I will be able to help until I see where they go.
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#3 2006-12-20 07:51:16
- John E. Franklin
- Member
- Registered: 2005-08-29
- Posts: 3,588
Re: Can someone help me with these two sums in complex numbers
Does n go from 0 to a number and theta stays a variable?
igloo myrtilles fourmis
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