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What is the principal positive angle of (-420^\circ30')?कोण (-420^\circ30') का मुख्य धनात्मक कोण क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (299^\circ30')(299^\circ30')
(-420^\circ30'+720^\circ=299^\circ30'). In exams, add multiples of (360^\circ) even for mixed degree-minute angles.(-420^\circ30'+720^\circ=299^\circ30')। परीक्षा में मिश्रित डिग्री-मिनट कोण पर भी (360^\circ) के गुणज जोड़ें।
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