perplexus.info :: Just Math : Not So Simple Sines

Not So Simple Sines (Posted on 2009-12-24)

Analytically prove sin(54)-sin(18) = 1/2

See The Solution Submitted by Brian Smith

Rating: 4.0000 (2 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

re: Is this analytical?

Comment 4 of 4 |

(In reply to Is this analytical? by Harry)

That's very analytical! Nice solution!

Posted by Steve Herman on 2010-01-11 18:07:08

Please log in:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (12)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info