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Unit 6 Day 4 Class Practice
Here is a unit circle where
/_QPR has a measure of
(pi)/(12) radians and
R~~(0.97,0.26).

Angle
QPT measures
(11 pi)/(12) radians. What are the approximate coordinates

Unit $6$ Day $4$ Class Practice $\newline$ Here is a unit circle where $\angle Q P R$ has a measure of $\frac{\pi}{12}$ radians and $R \approx(0.97,0.26)$ . $\newline$ $1$ . Angle $Q P T$ measures $\frac{11 \pi}{12}$ radians. What are the approximate coordinates

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Find Coordinate on Unit Circle

Full solution

Q. Unit

6

Day

4

Class Practice

\newline

Here is a unit circle where

\angle Q P R

has a measure of

\frac{\pi}{12}

radians and

R \approx(0.97,0.26)

.

\newline

1

. Angle

Q P T

measures

\frac{11 \pi}{12}

radians. What are the approximate coordinates

Identify Reference Angle: Identify the reference angle for $(11\pi)/(12)$ radians. $\newline$ Reference angle = $\pi - (11\pi)/(12) = (12\pi)/(12) - (11\pi)/(12) = (\pi)/(12)$ .
Find Coordinates of T: Use the coordinates of point R to find the coordinates of point T. Since R is at $(\frac{\pi}{12})$ and T is at $(\frac{11\pi}{12})$ , T is the reflection of R across the y-axis. T's $x$ -coordinate is the negative of R's $x$ -coordinate. T's $y$ -coordinate is the same as R's $y$ -coordinate.
Calculate T's Coordinates: Calculate the coordinates of point $T$ .T(\-0.97, 0.26).

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