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If (\alpha=220^\circ) then which reference angle and principal radian angle are correct?यदि (\alpha=220^\circ) है तो (\alpha) का संदर्भ कोण और मुख्य रेडियन कोण कौन सा है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (40^\circ) and (\frac{11\pi}{9})(40^\circ) और (\frac{11\pi}{9})
(220^\circ) is in the third quadrant so the reference angle is (40^\circ). (220^\circ=\frac{11\pi}{9}) radians.(220^\circ) तृतीय चतुर्थांश में है इसलिए संदर्भ कोण (40^\circ) है। (220^\circ=\frac{11\pi}{9}) रेडियन होता है।
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