Questions: Use the unit circle to determine the value of tan 19π. Complete parts (a) through (c) below (a) Given a real number t and the corresponding point P(x, y) on the unit circle, find the unit circle definition of the tangent function choose the correct answer below A. tan t=y B. tan t=x C. tan t=x/y, y ≠ 0 D. tan t=y/x, x ≠ 0
Transcript text: Part 1 of 3
Use the unit circle to determine the value of $\tan 19 \pi$. Complete parts (a) through (c) below
(a) Given a real number $t$ and the corresponding point $\mathrm{P}(\mathrm{x}, \mathrm{y})$ on the unit circle, find the unit circle definition of the tangent function choose the correct answer below
A. $\tan t=y$
B. $\tan t=x$
C. $\tan t=\frac{x}{y}, y \neq 0$
D. $\tan t=\frac{y}{x}, x \neq 0$
Solution
Solution Steps
To solve this problem, we need to understand the unit circle definition of the tangent function. The tangent of an angle \( t \) in the unit circle is defined as the ratio of the y-coordinate to the x-coordinate of the corresponding point on the unit circle.
Step 1: Understanding the Unit Circle Definition of Tangent
The tangent of an angle \( t \) in the unit circle is defined as the ratio of the y-coordinate to the x-coordinate of the corresponding point on the unit circle. This can be expressed as:
\[
\tan t = \frac{y}{x}, \quad x \neq 0
\]
Final Answer
The correct answer is:
\[
\boxed{D. \tan t = \frac{y}{x}, \quad x \neq 0}
\]