solve 2 Cos[2 x] (1 + Sqrt[1 + h (1 - Cos[x]) Csc[x]^2]) + ((h Csc[x] - 2 h (1 - Cos[x]) Cot[x] Csc[x]^2) Sin[2 x])/(2 Sqrt[1 + h (1 - Cos[x]) Csc[x]^2]) for x

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