Problem 72 of 7
Evaluate trig functions for negative angle -3pi/2.
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use clockwise rotation or symmetry.
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Use clockwise rotation or symmetry for common negative angles.
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Solution
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1. Rotate clockwise or find a positive coterminal angle.
2. Locate the terminal side.
3. Read or compute exact trig values.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Using positive-angle signs without quadrant adjustment.