Problem 170 of 7
Correct the unit-circle trig error in tan(pi/2)=0.
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catch coordinate swap, sign, reference-angle, period, and undefined-value mistakes.
Hidden until you reveal it.
Catch coordinate swap, sign, reference-angle, period, and undefined-value mistakes.
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Solution
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1. Identify the unit-circle rule being misused.
2. Locate the angle or point correctly.
3. State the corrected trig value or relationship.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Only saying the value is wrong.