cos 2 sigma=1/2

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cos 2 sigma=1/2

Guest Jul 27, 2014

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Best Answer

The cosine = 1/2 at 60 degrees and at 300 degrees.

So we need to divide both angles by two for 2 theta (or 2 sigma).

So we have 30 degrees and 150 degrees.

CPhill Jul 27, 2014

CPhill · Answer 1 · 2014-07-27T01:07:23

The cosine = 1/2 at 60 degrees and at 300 degrees.

So we need to divide both angles by two for 2 theta (or 2 sigma).

So we have 30 degrees and 150 degrees.