Calculate the value of at .

MATHEMATICS · Single correct · A Level · Mathematics · Exponentials and logarithms · Exponentials and logarithms

Problem

Calculate the value of

\displaystyle \frac{d}{dx}\bigl[3\ln(5x)\bigr]

at

x=1

. (a)

15

(b)

3

(c)

5

(d)

1

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