Question #2af06 Trigonometry Right Triangles Trigonometric Functions of Any Angle 1 Answer salamat Mar 22, 2017 (-1.4142, 1.4142) Explanation: x = r cos theta and y = r sin theta r = 2, theta = 3 pi/4 therefore, x =2 cos (3/4 pi) = 2 * (-0.7071) = -1.4142 y = 2 sin (3/4 pi) = 2 * (0.7071) = 1.4142 Cartesian coordinate for (2, 3/4 pi) is (-1.4142, 1.4142) Answer link Related questions How do you find the trigonometric functions of any angle? What is the reference angle? How do you use the ordered pairs on a unit circle to evaluate a trigonometric function of any angle? What is the reference angle for 140^\circ? How do you find the value of cot 300^@? What is the value of sin -45^@? How do you find the trigonometric functions of values that are greater than 360^@? How do you use the reference angles to find sin210cos330-tan 135? How do you know if sin 30 = sin 150? How do you show that (costheta)(sectheta) = 1 if theta=pi/4? See all questions in Trigonometric Functions of Any Angle Impact of this question 1104 views around the world You can reuse this answer Creative Commons License