Backup diff of TrigonometricFunction (No. 1)

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  • 1 (2022-07-15 (Fri) 09:36:42)
  • 2 (2023-08-19 (Sat) 12:53:38)

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-三角関数の合成公式
--  http://www.geisya.or.jp/~mwm48961/kou3/trigonometric24.htm