ãä»åã¯æ°â ¡ããäžè§é¢æ°ã®åæãæ±ããŸãã
äžè§é¢æ°ã®åæã¯ãè§åºŠãããã£ãŠãã sin ãš cos ãã²ãšãŸãšãã«ããæ¹æ³ã§ããå ¬åŒã¯åŸè¿°ããŸãããsin ãšcos ã®åãã²ãšã€ã® sin ã«ããã®ãäžè¬çãªåæã§ãã
ãååãŸã§ã®åè§ã»åè§ã®å ¬åŒãšäžè§é¢æ°ã®åæã¯ãã»ã³ã¿ãŒè©Šéšãªã©ã§å¿ ããšèšã£ãŠããã»ã©é »ç¹ã«åãæ±ãããŸãããªã®ã§å¿ ãèŠããããã«ããŠäžããã
ã以äžã§æ±ãæ¹çšåŒã®åé¡ã¯ãåæãããã°èŠãããšã®ãã圢ã«ãªãã®ã§ãããªã解ãããšæããŸãã
ãããã§ã¯å ¬åŒã確èªããŠåé¡ã解ããŠã¿ãŸãããã
ãããã§ããã§ããããïŒ
äœåºŠãèšããŸããããšãŠã倧äºãªãšãããªã®ã§ãã£ããèŠããããã«ããŠãã ããã
ã¢ã¡ããã®æ¹ã«ãåé¡ãèŒããŠããã®ã§ãã²ã芧ãã ããã