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6. tan 8 + tan 28 + tan 8 tan 28 = 1.[उ. प्र. 2013 (CU)]7.यदि 7 और 8 समीकरण a cos 28 + b sin 28 = c केसन्तुष्ट करते हों, तो सिद्ध कीजिए :a+ac+|cos° 0 + cos B =atedelcos a cos ß22? +b?I sin= cd |
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Answer» Step-by-step explanation: For question 6: tan 8 + tan 2+ tan 8 tan 28 = 1 tan 8 + tan 2 = 1- tan 8 tan 28 Dividing throughout by 1-tan 8 tan 28 Which is not possible... |
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