# half-angle formulas

## half-angle formulas

[′haf ‚aŋ·gəl ‚fȯr·myə·ləz] (mathematics)

In trigonometry, formulas that express the trigonometric functions of half an angle in terms of trigonometric functions of the angle.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

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