當前位置：柔美女性網 >

關於arctanyx的時尚顧問

arctany/x求偏導

  • arctany/x求偏導

  • 偏導為：-2xy/(x²+y²)²解:原式=∂z/∂x=1/(1+y²/x²)*(-y/x²)=-y/(x²+y²)∂z/∂y=1/(1+y²/x²)*1/x=x/(x²+y²)∂²z/∂x²=y/(x²+y²)*2x=2xy/(x²+y²)²∂²z/∂x∂y=-[x²+y²-2y²]/(x²+y²)²=(y²-x²)/(x²+y²)²∂²z/∂y²=-2xy/(x²+y²)²[arctany...
  • 31151

熱門推薦

猜您喜歡
專題
友情連結