f(x)=ln(5x^2/√(5+x^2))求导
问题描述:
f(x)=ln(5x^2/√(5+x^2))求导
答
f(x)/=ln(5x^2/√(5+x^2))=(ln(5x^2-ln√(5+x^2))/=2x/x^2-1/(√((5+x^2))*[1/2*1/((√((5+x^2))*2x]=2/x-1/(5+x^2)
f(x)=ln(5x^2/√(5+x^2))求导
f(x)/=ln(5x^2/√(5+x^2))=(ln(5x^2-ln√(5+x^2))/=2x/x^2-1/(√((5+x^2))*[1/2*1/((√((5+x^2))*2x]=2/x-1/(5+x^2)