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HereI usedtheformulacos(A+B+c) =1-tanATanB-tanBtanC -tanCtanAandreciprocalitbut my ans is coming2sowhatis my mistakein thismethodI knowother methodbutI triedto solve throughbecause it'salso arightapproach plzz help

Hashmalika , 3 Years ago
Grade 11
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