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If (\cos \theta=\cos \alpha), which is the general solution?यदि (\cos \theta=\cos \alpha), तो सामान्य हल कौन सा है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (\theta=2n\pi\pm\alpha)(\theta=2n\pi\pm\alpha)
For ( \cos \theta=\cos \alpha), angles occur in both directions. In exams do not forget ( \pm\alpha).(\cos \theta=\cos \alpha) के लिए दोनों दिशाओं में कोण मिलते हैं। परीक्षा में (\pm\alpha) लगाना न भूलें।
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