Ë«¶þ´Î·½³Ì

Æ´Òô
×¢Òô

¡°Ë«¶þ´Î·½³Ì¡±»ù±¾½âÊÍ

Óֳơ°×¼¶þ´Î·½³Ì¡±¡£ÒÆÏîÇҺϲ¢Í¬ÀàÏîÖ®ºó£¬Ö»º¬ÓÐż´ÎÏîµÄËĴη½³Ì¡£ÆäÒ»°ãÐÎʽΪax?4+bx?2+c=0(a¡¢b¡Ù0)¡£ÈôÉèx?2=y£¬ÔòÔ­·½³Ì»¯Îªay?2+by+c=0£¬¿ÉÇóµÃy£½-b¡Àb?2-4ac2a¡£ÓÚÊÇË«¶þ´Î·½³ÌËĸö¸ùµÄÇó¸ù¹«Ê½Îªx=¡À-b¡Àb?2-4ac2a¡£

¡°Ë«¶þ´Î·½³Ì¡±·Ö´Ê½âÊÍ

Ë«

¡ñ Ë«£¨ëp£©shu¨¡ng ¨Õ¨è¨ä¡¥ Á½¸ö£¬Ò»¶Ô£ºÒ»¡«Ð¬¡£¡«¸Ü¡£¡«ÖØ£¨ch¨¯ng £©¡£¡«·½¡£¡«¹ÜÆëÏ¡£¡«¶¹Èû´Ï£¨¶ú±»¶ÂÈû£¬Ò»ÎÞËùÎÅ£©¡£¡«Í«

ÏêÇé
¶þ

»ù±¾×ÖÒå¡ñ ¶þ¨¨r ¨æ¨AÊýÃû£ºÒ»¼ÓÒ»£¨ÔÚ³®Æ±ºÍµ¥¾ÝÉϳ£Óôóд¡°·¡¡±´ú£©¡£Ë«£¬±È£º¶ÀÒ»ÎÞ¡«¡£Á½Ñù£¬±ðµÄ£º¡«»°¡£²»¡«¼Û¡£

ÏêÇé
´Î

»ù±¾×ÖÒå¡ñ ´Îc¨¬ ¨Ø¨AµÚ¶þ£º¡«ÈÕ¡£¡«×Ó¡£¡«µÈ¡£¡«Òª¡£ÖÊÁ¿¡¢Æ·ÖʽϲîµÄ£º¡«Æ·¡£¡«»õ¡£µÈµÚ£¬Ë³Ðò£º¡«µÚ¡£¡«Ðò¡£Ãû¡«¡£»¯Ñ§ÉÏÖ¸Ëá¸ù»ò»¯ºÏÎ

ÏêÇé
·½

»ù±¾×ÖÒå¡ñ ·½f¨¡ng ¨È¨ä¡¥ Ëĸö½Ç¶¼ÊÇ90¶ÈÖ±½ÇµÄËıßÐλòÁù¸öÃ涼ÊÇ·½ÐεÄÁ¢Ì壻Õý¡«ÐΣ®³¤¡«ÐÎ ÊýѧÉÏָijÊý×Գ˵Ļý£º¡«¸ù¡£Æ½¡«¡£¿ª¡«¡

ÏêÇé
³Ì

»ù±¾×ÖÒå¡ñ ³Ìch¨¦ng ¨Ô¨å¨@¹æ¾Ø£¬·¨Ê½£º¡«Ê½¡£¡«Ðò¡£Õ¡«¡£¹æ¡«¡£½øÕ¹£¬Ï޶ȣº¡«¶È¡£½ø¡«¡£ÈÕ¡«¡£¹ý¡«¡£µÀ·µÄ¶ÎÂ䣺·¡«¡£ÐУ¨x¨ªng

ÏêÇé