22

[left| {{{left| {fleft( y ight)} ight|}^p} - {{left| {fleft( x ight)} ight|}^p}} ight|=left| {int_x^y {p{{left| {fleft( t ight)} ight|}^{p - 1}}f'left( t ight)dt} } ight| le left( {p - 1} ight)int_x^y {{{left| {fleft( t ight)} ight|}^p}dt}  + int_x^y {{{left| {f'left( t ight)} ight|}^p}dt} ]






        

	      

	    

	  

	  

	    
      
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          原文地址：https://www.cnblogs.com/ly758241/p/3757944.html