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ATQ, Amount invested by ‘Bhishma’ = 1200 × 0.6 = Rs. 720 Ratio of profit shares of ‘Arjun’ and ‘Bhishma’ = (12 × 1200):(4 × 720) = 5:1 So, profit share of ‘Bhishma’ = 4200 × (1/6) = Rs. 700
sin2 9 ° + sin2 10 ° + sin2 11 ° + sin2 12 ° + ……… + sin2 81 ° = ?
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Simplify the given equation: