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| Sine-full Pi (Posted on 2007-11-14) |
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Show that:
sin(2*pi/7) + sin(4*pi/7) + sin(8*pi/7) = √7/2
Note: All the angles are in radians.
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Submitted by K Sengupta
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Rating: 2.3333 (3 votes)
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Solution:
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(Hide)
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Refer to the solution submitted by Chesca Ciprian in this location.
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