In this lesson, we will learn how to relate the 𝑥- and 𝑦-coordinates of points on the unit circle to trigonometric functions.
Students will be able to
Q1:
Find the value of cos0.
Q2:
In the figure, points π(π,π)cossin and π lie on the unit circle, and β π΄ππ=2πβπ.
Express the values of sine, cosine, and tangent of 2πβπ in terms of their values for π. Check whether this is valid for all values of π.
Q3:
Find sinπ, given π is in standard position and its terminal side passes through the point οΌ35,β45ο.
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