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B
2log∣∣sin(x−π3)secx∣∣+C
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C
2log∣∣sinx−sin(x−π3)∣∣+C
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D
Noneofthese
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Solution
The correct option is B2log∣∣sin(x−π3)secx∣∣+C I=1cos(π3)∫cos(x−(x−π3))sin(x−π3)cosx =1cosπ3∫cos(x−(x−π3))sin(x−π3)cosxdx =1cosπ3∫(cosxcos(x−π3)+sinxsin(x−π3))sin(x−π3)cosxdx =1cosπ3∫(cot(x−π3)+tanx)dx =2(log∣∣sin(x−π3)∣∣+log|secx|)+c