Problem 119 of 7
Interpret sine and cosine as coordinates for Angle zeta corresponds to the unit-circle point (sqrt(2)/2, -sqrt(2)/2).
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connect angle, unit circle point, and trig values.
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Angle information must identify a point on the unit circle.
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Your answer is equivalent to the expected form.
Walkthrough
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1. Identify the x-coordinate of the unit-circle point.
2. Identify the y-coordinate of the unit-circle point.
3. Assign cosine to x and sine to y.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Swapping sine and cosine coordinates.