Mathematics students have cause to celebrate. A University of New South Wales academic, Dr Norman Wildberger, has rewritten the arcane rules of trigonometry and eliminated sines, cosines and tangents ...
Interactive macro-enabled MS-Excel spreadsheet. Contents: Find exact trigonometric values for 45° using an isosceles triangle. Find exact trigonometric values for 30° & 60° using an equilateral Δ.
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