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x?(A?B)C?x?A?B? x?A»òx?B? x?AC»òx?BC ? x?AC ?BC? ËùÒÔ (A?B)C?AC ?BC ?

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5? ÉèÓ³Éäf ? X?Y? A?X ? Ö¤Ã÷? (1)f ?1(f(A))?A?

(2)µ±fÊǵ¥Éäʱ? ÓÐf ?1(f(A))?A ?

Ö¤Ã÷ (1)ÒòΪx?A ? f(x)?y?f(A) ? f ?1(y)?x?f ?1(f(A))? ËùÒÔ f ?1(f(A))?A?

(2)ÓÉ(1)Öªf ?1(f(A))?A?

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10? Éè f(x)Ϊ¶¨ÒåÔÚ(?l? l)ÄÚµÄÆæº¯Êý? Èôf(x)ÔÚ(0? l)ÄÚµ¥µ÷Ôö¼Ó? Ö¤Ã÷f(x)ÔÚ(?l? 0)ÄÚÒ²µ¥µ÷Ôö¼Ó?

Ö¤Ã÷ ¶ÔÓÚ?x1? x2?(?l? 0)ÇÒx1?x2? ÓÐ?x1? ?x2?(0? l)ÇÒ?x1??x2? ÒòΪf(x)ÔÚ(0? l)ÄÚµ¥µ÷Ôö¼ÓÇÒÎªÆæº¯Êý? ËùÒÔ

f(?x2)?f(?x1)? ?f(x2)??f(x1)? f(x2)?f(x1)?

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(2)Á½¸öżº¯ÊýµÄ³Ë»ýÊÇżº¯Êý? Á½¸öÆæº¯ÊýµÄ³Ë»ýÊÇżº¯Êý? żº¯ÊýÓëÆæº¯ÊýµÄ³Ë»ýÊÇÆæº¯Êý?

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F(?x)?f(?x)?g(?x)?[?f(x)][?g(x)]?f(x)?g(x)?F(x)? ËùÒÔF(x)Ϊżº¯Êý? ¼´Á½¸öÆæº¯ÊýµÄ»ýÊÇżº¯Êý? Èç¹ûf(x)ÊÇżº¯Êý? ¶øg(x)ÊÇÆæº¯Êý? Ôò

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? ËùÒÔf(x)ÊÇżº¯Êý?

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(5)ÓÉf(?x)?sin(?x)?cos(?x)?1??sin x?cos x?1¿É¼ûf(x)¼È·ÇÆæº¯ÊýÓÖ·Çżº¯Êý? (6)ÒòΪ

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13? ÏÂÁи÷º¯ÊýÖÐÄÄЩÊÇÖÜÆÚº¯Êý£¿¶ÔÓÚÖÜÆÚº¯Êý? Ö¸³öÆäÖÜÆÚ? (1)y?cos(x?2)?

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