What is the limit as x approaches infinity of ln(3x)-ln(x+7) ?

The limit as x approaches infinity of ln(3x)-ln(x+7) is ln(3)

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limit as x approaches infinity of ln(3x)-ln(x+7)

x \to \infty lim (ln (3 x) - ln (x + 7))

ln (3)

Decimal

1.09861 \dots

Solution steps

x \to \infty lim (ln (3 x) - ln (x + 7))

Apply log rule:

lo g_{c} (a) - lo g_{c} (b) = lo g_{c} (\frac{a}{b})

ln (3 x) - ln (x + 7) = ln (\frac{3 x}{x + 7})

= x \to \infty lim (ln (\frac{3 x}{x + 7}))

Apply the Limit Chain Rule:

ln (3)

= ln (3)

\frac{d y}{d t} = 2 y + 3 e^{2 t}

\frac{d}{d x} (2 x x^{2} + 1)

x \to 0 lim (\frac{( 9 ^{x} - 7 ^{x} )}{x})

\frac{\partial}{\partial x} (2 - 6 y)

\int \frac{1}{( x x )} d x

What is the limit as x approaches infinity of ln(3x)-ln(x+7) ?
The limit as x approaches infinity of ln(3x)-ln(x+7) is ln(3)