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What is the reference angle of an angle ( \theta=\frac{3\pi}{5} )?( \theta=\frac{3\pi}{5} ) वाले कोण की संदर्भ कोण क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ( \frac{2\pi}{5} )( \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 ).( \frac{3\pi}{5} ) द्वितीय चतुर्थांश में है और संदर्भ कोण ( \pi-\frac{3\pi}{5}=\frac{2\pi}{5} ) है। द्वितीय चतुर्थांश में ( \pi-\theta ) लें।
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