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- Select Question Language :
If α + β + γ = 2 π,
Options :-
- tan a/2 + tan b/2 + tan g/2 = tan a/2 tan b/2 tan g/2
- tan a/2 + tan b/2 + tan g/2 = - tan a/2 tan b/2 tan g/2
- tan a/2 tan b/2 + tan b/2 tan g/2 + tan g/2 tan a/2 = 1
- tan α tanβ + tanβ tan γ + tan γ tan α = 1
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