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cos2 1° + . . . + cos2 90°

October 30, 2016 at 6:48am by huggins.5@osu.edu

cos²1° + cos²2° + cos²3° + . . . + cos²89° + cos²90° = ?

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Posted in Algebra II / Trigonometry, Set 13 Tagged Rich Math Problems Bookmark the permalink.

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