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If ( \theta=\frac{11\pi}{9} ), what is the principal coterminal angle of (2\theta)?यदि ( \theta=\frac{11\pi}{9} ) है तो (2\theta) का मुख्य सहसमापी कोण क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: ( \frac{4\pi}{9} )( \frac{4\pi}{9} )
(2\theta=\frac{22\pi}{9}) and ( \frac{22\pi}{9}-2\pi=\frac{4\pi}{9} ). After multiplying, subtract (2\pi).(2\theta=\frac{22\pi}{9}) और ( \frac{22\pi}{9}-2\pi=\frac{4\pi}{9} ) है। गुणा करने के बाद (2\pi) घटाएं।
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