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RE fog for. [1+ cos +) {1+cos (19)[1 + cos(1 + cos2 = 1 |
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Answer» [ 1 + cos( pi/10)][ 1+ cos(3pi/10][1+ cos(7pi/10)]1+ cos(9pi/10]= 1 /2 ; [10][28][64][82]= |
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