Precalculus Examples

$\frac{55 (\ln (20 - 1))}{\ln^{2} (20)}$

Step 1

Simplify $55 \ln (20 - 1)$ by moving $55$ inside the logarithm.

$\frac{\ln ({(20 - 1)}^{55})}{\ln^{2} (20)}$

Step 2

Subtract $1$ from $20$ .

$\frac{\ln (19^{55})}{\ln^{2} (20)}$

Step 3

The result can be shown in multiple forms.

Exact Form:

$\frac{\ln (19^{55})}{\ln^{2} (20)}$

Decimal Form:

$18.04509827 \dots$