Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 6 - No. 18)
In the context of a circle, what are the coordinates of a point on the unit circle at angle θ?
(cos θ, sin θ)
(sin θ, cos θ)
(tan θ, cot θ)
(sec θ, csc θ)
Explanation
The point on the unit circle is (cos θ, sin θ)
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