求导f(x)=-a√(x^2+1)

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求导f(x)=-a√(x^2+1)求导f(x)=-a√(x^2+1)求导f(x)=-a√(x^2+1)f(x)=-a√(x^2+1)=-a(x^2+1)^(1/2)f''(x)=-a*(-1/2)(x^

求导f(x)=-a√(x^2+1)
求导f(x)=-a√(x^2+1)

求导f(x)=-a√(x^2+1)
f(x)=-a√(x^2+1)
=-a(x^2+1)^(1/2)
f'(x)=-a*(-1/2)(x^2+1)^(1/2-1)*(x^2)'
=a/2*(x^2+1)^(-1/2)*2x
=2x/√(x^2+1)

-ax(x^2+1)^(-1/2)