Sin(x)/7x

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Solution for Sin(x)/7x equation: 


x in (-oo:+oo)

x*(sin(x)/7) = 0

x = 0

sin(x)/7 = 0

sin(x)/7 = 0 // * 7

sin(x) = 0

sin(x) = 0  <=>  x = pi*k_1 i k_1 należy do I

t_1 = pi*k_1

x-t_1 = 0

x-t_1 = 0 // + t_1

x = t_1

x = pi*k_1 i k_1 należy do I

x*(sin(x)/7) = 0  <=>  x = 0 or x*(sin(x)/7) = 0  <=>  sin(x)/7 = 0

x in { 0, pi*k_1 }

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