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If ( \alpha=\frac{7\pi}{10} ) and ( \beta=\frac{13\pi}{10} ), what is the principal angle of ( \alpha+\beta )?यदि ( \alpha=\frac{7\pi}{10} ) और ( \beta=\frac{13\pi}{10} ) हैं तो ( \alpha+\beta ) का मुख्य कोण क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (0)(0)
( \alpha+\beta=\frac{20\pi}{10}=2\pi ), which is coterminal with (0). In principal angle form, (2\pi) is taken as (0).( \alpha+\beta=\frac{20\pi}{10}=2\pi ) है जो (0) के साथ सहसमापी है। मुख्य कोण में (2\pi) को (0) माना जाता है।
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