百科知识

ln(X+√1+x2)如何求导

2012-12-28 21:49:272***
ln(X+√1+x2)如何求导ln(X+√1+x2)如何求导:(ln(x+√(1+x^2)))' =(x+√(1+x^2))'/(x+√(1+x^2)) =(1+2x/(2√(1+x^2))?

最佳回答

  • (ln(x+√(1+x^2)))' =(x+√(1+x^2))'/(x+√(1+x^2)) =(1+2x/(2√(1+x^2)))/(x+√(1+x^2)) =1/√(1+x^2)
    2012-12-28 21:54:09
  • [ln(x+√(1+x²))' =[1/(x+√(1+x²)]×[x+√(1+x²)]' =[1/(x+√(1+x²)]×[1+(1/2)×1/√(1+x²)×2x] =[√(1+x²)]/(1+x²)
    2012-12-28 22:01:27
  • [1+ x (1+x2)^(-1/2)]/[X+√(1+x2)]
    2012-12-28 21:55:50
  • 很赞哦! (25)