Sin ѳ + sqrt(sin ѳ + sqrt(sin ѳ + sqrt(sin ѳ + ...........................to infinity = sec⁴α,then sin ѳ = ?
Sin ѳ + sqrt(sin ѳ + sqrt(sin ѳ + sqrt(sin ѳ + ...........................to infinity = sec⁴α,
then sin ѳ = ?


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