Aï¼å¾ååä¸ï¼å¤§äº0ï¼åä¸å°äº0
B:对称轴å¨æ£åè½´ï¼ä¸aæ£è´å½¢ç¸å;对称轴å¨è´åè½´ï¼åä¸aæ£è´å½¢ç¸åï¼è®°ä½å³å¼å·¦åã 令x=0ï¼åyçå¼å°±æ¯cçå¼ï¼açå¼å£æ¹åï¼åä¸å¤§äº0ï¼åä¸å°äº0.
C:令X=0ï¼åYå¼å°±æ¯Cçå¼ã
温馨提示:答案为网友推荐,仅供参考