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Addition Rule of Differentiation

If f x =log x...

Question

If f(x) = log x, then equals

A

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B

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C

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D

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Solution

The correct option is C
$f (x) = l o g x f^{'} (x) = \frac{1}{x} f^{'} (l o g x) = \frac{1}{l o g x}$

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Similar questions

y = log (log x)

\frac{d^{2} y}{d x^{2}}

Q. State true or false:

The differential coefficient of

f (log x)

log x

f (x) = log x

\frac{1}{log x}

y = \sqrt{log x + \sqrt{log x + \sqrt{log x + . . . . . . \infty}}}

\frac{d y}{d x} = \frac{1}{x (2 y - 1)}

y = \sqrt{log x + \sqrt{log x + \sqrt{log x + . . . \infty}}}

\frac{d y}{d x} = \frac{1}{x (2 y - 1)}

f (x) = log (x + \sqrt{1 + x^{2}})

f (x)

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