Let a, b, c be positive real numbers such that θ = tan-1√((a(a + b + c))/bc) + tan^-1√((b(a + b + c))/ca) + tan^-1√((c(a

Let a, b, c be positive real numbers such that θ = tan^-1√((a(a + b + c))/bc) + tan^-1√((b(a + b + c))/ca) + tan^-1√((c(a + b + c))/ab) Then tanθ is equal to?

Let a, b, c be positive real numbers such that θ = tan-1√((a(a + b + c))/bc) + tan^-1√((b(a + b + c))/ca) + tan^-1√((c(a + b + c))/ab)

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