这个好像是对的,是吧?k'(2)=f'(2)/sqr(f(2))=3/16
所有跟帖:
• I left out "-", added -oops_yz- ♀ (0 bytes) () 11/04/2018 postreply 11:14:34
• oops_yz: 你是对的! -nanbudao- ♀ (0 bytes) () 11/04/2018 postreply 14:11:16
• I left out "-", added -oops_yz- ♀ (0 bytes) () 11/04/2018 postreply 11:14:34
• oops_yz: 你是对的! -nanbudao- ♀ (0 bytes) () 11/04/2018 postreply 14:11:16