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Portable Network Graphic  |  1988-04-19  |  2.6 KB  |  512x342  |  4-bit (3 colors)
   ocr: ythagorean identity - sin2x + cos?x = 1 L sec2x - = 1 + tan?x csc2x = 1 + cot2x a Law of sines Law of cosines sin % sin B sin Y a2= b2+c2- 2bc - COS & a - table of contents