Learn How to Find Derivative of ln x with Logarithmic Differentiation – Calculus Tutorial

Derivative of ln x

1/x

The derivative of ln x is simply 1/x. To find the derivative of ln x using calculus, we can use the logarithmic differentiation technique.

Let y = ln x. Taking the natural logarithm of both sides, we have:

ln y = ln(ln x)

Differentiating both sides with respect to x:

(1/y)dy/dx = 1/x * 1/ln x

Simplifying this expression, we get:

dy/dx = y/x

Substituting y = ln x, we get:

dy/dx = (ln x)/x

Therefore, the derivative of ln x is 1/x.

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