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Rational sine (Posted on 2005-05-02) Difficulty: 5 of 5
Is there a non-zero rational number q such that sin(q) is rational (radian measure)?

How about a transcendental number with transcendental sine?

No Solution Yet Submitted by lmnop    
Rating: 3.0000 (2 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: How many digits? | Comment 3 of 7 |
(In reply to How many digits? by Erik O.)

It seems to me that what is meant in the problem is that the rational numbers are to be exact, so they are perhaps best represented as ratios of whole numbers rather than as decimals.
  Posted by Richard on 2005-05-05 04:15:08

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