The point P(x, y) on the unit circle that corresponds to a real number t is given. Find the values of the indicated
trigonometric function at t.
-$\left( \frac { 4 } { 7 } , - \frac { \sqrt { 33 } } { 7 } \right) \quad$ Find $\cos t$
A) $\frac { 4 } { 7 }$
B) $- \frac { \sqrt { 33 } } { 7 }$
C) $\frac { \sqrt { 33 } } { 7 }$
D) $- \frac { 4 } { 7 }$

Question

Quizplus · Accepted Answer

The cosine of an angle in the unit circle is equal to the x-coordinate of the point on the circle that corresponds to that angle. Therefore, $\cos t = \frac{4}{7}$.

The Point P(x, Y) on the Unit Circle That Corresponds (47,−337)\left( \frac { 4 } { 7 } , - \frac { \sqrt { 33 } } { 7 } \right) \quad(74​,−733​​)

The Point P(x, Y) on the Unit Circle That Corresponds $\left( \frac { 4 } { 7 } , - \frac { \sqrt { 33 } } { 7 } \right) \quad$