unit circle (with radians)
what is the value of the $y$-coordinate of point $a$?
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Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "Unit Circle Values" ], "new_concepts": [], "current_concepts": [ "Unit Circle Values" ] } ## Identify the coordinates of point A on the unit circle $$ A = (0, -1) $$ ## Determine the y-coordinate of point A $$ y = -1 $$ $-1$ { "subject": "Mathematics", "question_type": "Free Response", "knowledge_point": [ "Mathematics", "Geometry", "Unit Circle Values" ] }

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Explanation:

Identify the coordinates of point A on the unit circle

Determine the y-coordinate of point A

Answer: