Algebra-2

Question Analysis
This question involves finding the tangent value at radians (180°).The main focus is on using the sine/cosine definition of tangent for a key angle.

Key Concept Explanation
At radians, the unit circle point is , so and . Using , we calculate . Graphically, this is another x-intercept of the tangent function.

Step-by-step Solution
1. Identify the unit circle point for :

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