Éè f(x) ÊÇÒ»¸öº¯Êý, ËüÓÐÒ»¸öÄ溯Êý f −1(x).¹ØÓÚ f(x)ÄãÓÐÒÔÏÂÐÅÏ¢: f(-1.37177661)=-10.4905502 f'(-1.37177661)=7.17652634
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ÄãÒª´ÓÉñÃغ¯Êý f(x) µÄÒÑÖªÐÅÏ¢¾¡¿ÉÄܲÂ×¼ËùÒªÇóµÄÖµ. µ±ÄãÌá½»Á˻شðºó, »áÊÕµ½¹ØÓڴ˺¯ÊýµÄ¸ü½øÒ»²½µÄÐÅÏ¢, Äã¿ÉÒÔÓÃËüÀ´¾«È·»¯ÄãµÄ²Â²â. µÃ·Ö½«¸ù¾ÝÄãµÃµ½ÕýÈ·ÖµµÄ³¢ÊÔ´ÎÊý¶ø¶¨.
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