Precalculus Examples

$\frac{\cos (12) \ln (1.78)}{1.88}$

Step 1

Evaluate $\cos (12)$ .

$\frac{0.9781476 \ln (1.78)}{1.88}$

Step 2

Simplify $0.9781476 \ln (1.78)$ by moving $0.9781476$ inside the logarithm.

$\frac{\ln ({1.78}^{0.9781476})}{1.88}$

Step 3

Raise $1.78$ to the power of $0.9781476$ .

$\frac{\ln (1.75771202)}{1.88}$

Step 4

Replace $e$ with an approximation.

$\frac{\log_{2.71828182} (1.75771202)}{1.88}$

Step 5

Log base $2.71828182$ of $1.75771202$ is approximately $0.56401297$ .

$\frac{0.56401297}{1.88}$

Step 6

Divide $0.56401297$ by $1.88$ .

$0.3000069$