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Sine gives pi? (Posted on 2013-04-02) Difficulty: 2 of 5
Why does sin(1/5555555°) have a decimal that so closely resembles pi?

  Submitted by Jer    
Rating: 2.0000 (1 votes)
Solution: (Hide)
1/5555555 ≈ 1.8*10-6 = πx10-8 radian.

For very small angles sin(θ)≈θ

So sin(πx10-8 radian)≈πx10-8

Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionSolutionCharlie2013-04-02 11:08:08
SolutionKenny M2013-04-02 08:59:29
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