½â£º£¨1£©Ê¼þ¡°¦Î=0¡±°üº¬£º¡°Ê״λý·ÖΪ0·Ö¡±Ê¼þAºÍ¡°Ê״λý·ÖΪ40·ÖºóÔÙתһ´ÎµÄ»ý·Ö²»¸ßÓÚ40·Ö¡±Ê¼þB£¬ÇÒAÓëBÁ½Õß»¥³â£¬
¡ßP£¨A£©=
£¬
ÓÖ¡ßÓÉÌâÒâ²Î¼Ó¸ÃÓÎϷתһ´Î»ñµÃµÄ»ý·ÖÊÇ40·Ö£¬ÔòÓÃÅ×һöÖʵؾùÔȵÄÓ²±ÒµÄ·½·¨À´¾ö¶¨ÊÇ·ñ¼ÌÐøÓÎÏ·£®·´ÃæÏòÉÏʱ£¬ÔÙתһ´ÎתÅÌ£¬ÈôÔÙתһ´ÎµÄ»ý·Ö²»¸ßÓÚ40·Ö£¬Ôò×îÖÕ»ý·ÖΪ0·Ö£¬
¡àP£¨B£©=
£®
¡à
£»
£¨2£©¦ÎµÄËùÓпÉÄÜȡֵΪ0£¬10£¬40£¬100£¬
ÓÉ£¨1£©Öª
£¬
ÓÖ
£¬
£¬
£¬
ËùÒԦεĸÅÂÊ·Ö²¼Îª£º
Òò´Ë£¬
£¨·Ö£©£®
·ÖÎö£º£¨1£©Ê¼þ¡°¦Î=0¡±°üº¬£º¡°Ê״λý·ÖΪ0·Ö¡±ºÍ¡°Ê״λý·ÖΪ40·ÖºóÔÙתһ´ÎµÄ»ý·Ö²»¸ßÓÚ40·Ö¡±£¬ÇÒÁ½Õß»¥³â£¬ÀûÓû¥³âʼþµÄ¸ÅÂʼÆË㹫ʽºÍÏ໥¶ÀÁ¢Ê¼þµÄ¸ÅÂʼÆË㹫ʽ¼´¿ÉµÃ³ö£»
£¨2£©¦ÎµÄËùÓпÉÄÜȡֵΪ0£¬10£¬40£¬100£¬ÀûÓû¥³âʼþµÄ¸ÅÂʼÆË㹫ʽºÍÏ໥¶ÀÁ¢Ê¼þµÄ¸ÅÂʼÆË㹫ʽºÍÊýѧÆÚÍû¼ÆË㹫ʽ¼´¿ÉµÃ³ö£®
µãÆÀ£ºÕýÈ·Àí½âÌâÒâºÍÊìÁ·ÕÆÎÕ»¥³âʼþµÄ¸ÅÂʼÆË㹫ʽºÍÏ໥¶ÀÁ¢Ê¼þµÄ¸ÅÂʼÆË㹫ʽºÍÊýѧÆÚÍû¼ÆË㹫ʽÊǽâÌâµÄ¹Ø¼ü£®