What is the reference angle of an angle ( \theta=\frac{3\pi}{5} )?
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Answer and explanation
Correct answer: ( \frac{2\pi}{5} )
( \frac{3\pi}{5} ) lies in the second quadrant, and the reference angle is ( \pi-\frac{3\pi}{5}=\frac{2\pi}{5} ). In the second quadrant use ( \pi-\theta ).
Frequently asked questions
What is the correct answer to this question?
( \frac{2\pi}{5} )
Why is this the correct answer?
( \frac{3\pi}{5} ) lies in the second quadrant, and the reference angle is ( \pi-\frac{3\pi}{5}=\frac{2\pi}{5} ). In the second quadrant use ( \pi-\theta ).
Which subject and chapter does this question cover?
This is a Class 12 Mathematics question. Chapter: Trigonometric Functions. Topic: Angles.
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