1 If tano + tan20 + tano tan20 = 1 ...
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1 If tano + tan20 + tano tan20 = 1 then general value of 0 is - (A) nn; n I (B) nr+; nel (C) +;ne I (D) None of these

JEE/Engineering Exams
Maths
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( tan theta+tan 2 theta+tan theta * sin 2 theta=1 ) ( tan theta+tan 2 theta=tan theta cdot tan 2 ) ( frac{tan theta+tan ^{2} theta}{1-tan theta+pi n theta}=1 ) ( tan 3 theta=1 ) ( cos frac{theta theta=h pi+frac{pi}{4}}{(h=I)} frac{h^{prime}}{3}+frac{pi}{12} )
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