Question

use a calculator to find the value of the trigonometric expression.\tan 3.8\tan 3.8 = \square (round to four decimal places as needed.)

Explanation:

Step1: Set calculator to radians

3.8 is assumed to be in radians (standard for trigonometric calculations without degree notation).

Step2: Calculate $\tan(3.8)$

$\tan(3.8) \approx -0.1584$

Step3: Round to 4 decimal places

No further adjustment needed, value is already at 4 decimals.

Answer:

-0.1584