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ATQ, Ratio of profit shares of X, Y and Z, respectively: = (8 × p) : {12 × (p + 2000) } : (8 × 4p) = 8p : (12p + 24000) : 32p = 2p:(3p + 6000) : 8p So, profit share of 'X' = [(3p+6000)/(2p+3p+6000+8p)] × (39p+18000) = = {[3(p+2000)/(13p+6000)] ×3×(13p+6000)} = Rs.9(p+2000)
sin2 9 ° + sin2 10 ° + sin2 11 ° + sin2 12 ° + ……… + sin2 81 ° = ?
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Simplify the given equation: