13 À :: `^`(`^`(16, `*`(sin, `*`(x))), `*`(cos, `*`(x))) = `^`(`/`(1, 4), `*`(sqrt(3), `*`(sin, `*`(x))))                                  Á :: [2π;7π/2] 

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ÎÒÂÅÒ 

À :: `*`(Pi, `*`(k)), `+`(`&+-`(`*`(`+`(`*`(5, `*`(Pi))), `/`(1, 6))), `*`(2, `*`(Pi, `*`(k)))), `in`(k, Z) Á :: `+`(`*`(2, `*`(Pi))); 1; `*`(`+`(`*`(17, `*`(Pi))), `/`(1, 6)); 1; `+`(`*`(3, `*`(Pi))); 1; `*`(`+`(`*`(19, `*`(Pi))), `/`(1, 6))