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If θ = 1560°, what is its reference angle?यदि θ = 1560° है, तो उसका संदर्भ कोण क्या होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: 60°60°
Subtract 1440° (four full revolutions) to get the coterminal angle 120°. It lies in the second quadrant, so its reference angle is 180° − 120° = 60°.चार पूरे चक्कर, यानी 1440°, घटाने पर सह-प्रारंभिक कोण 120° मिलता है। यह दूसरे चतुर्थांश में है, इसलिए संदर्भ कोण 180° − 120° = 60° है।
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