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Ratio equivalent capitals of A, B and C for 1 month = (32,000×2+ 28,000×2+16,000×8) : (5/8× 32,000 ×10)∶(8,000×8) = (64,000+56,000+1,28,000) ∶2,00,000∶64,000 = 2,48,000 : 2,00,000 : 64,000 = 31:25: 8 If the total profit at the end of the year be Rs x, then (8 x)/((31+25+8)) = 12,000 ⇒ 8x = 12,000 × 64 ⇒x = (12,000 × 64)/8 = Rs 96,000
sin2 9 ° + sin2 10 ° + sin2 11 ° + sin2 12 ° + ……… + sin2 81 ° = ?
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