What is the principal angle of the fourth-quadrant ray of the line (y=-x)?
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Answer and explanation
Correct answer: (\frac{7\pi}{4})
The fourth-quadrant ray of (y=-x) has reference angle (\frac{\pi}{4}). Hence the principal angle is (\frac{7\pi}{4}).
Frequently asked questions
What is the correct answer to this question?
(\frac{7\pi}{4})
Why is this the correct answer?
The fourth-quadrant ray of (y=-x) has reference angle (\frac{\pi}{4}). Hence the principal angle is (\frac{7\pi}{4}).
Which subject and chapter does this question cover?
This is a Class 12 Mathematics question. Chapter: Trigonometric Functions. Topic: Angles.
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