单词	Trigonometry Values Pi/8
释义	Trigonometry Values Pi/8     (1) Now, checking to see if the Square Root can be simplified gives (2) which is not a Perfect Square, so the above expression cannot be simplified. Similarly,     (3)     (4) But (5) is a Perfect Square, so we can find (6) Rewrite the above as (7) (8) Summarizing, (9) (10) (11) (12) (13) (14) See also Octagon
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