-cos(x^2/35)

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Solution for -cos(x^2/35) equation: 


x in (-oo:+oo)

-cos((x^2)/35) = 0

-cos((x^2)/35) = 0  <=>  (x^2)/35 = pi*k_1+pi/2 i k_1 należy do I

t_1 = pi*k_1+pi/2

(x^2)/35-t_1 = 0

1/35*x^2 = t_1 // : 1/35

x^2 = 35*t_1

x^2 = 35*t_1 // ^ 1/2

abs(x) = 35^(1/2)*t_1^(1/2)

x = 35^(1/2)*t_1^(1/2) or x = -(35^(1/2)*t_1^(1/2))

x = 35^(1/2)*pi*k_1+pi/2^(1/2) i k_1 należy do I

x = -(35^(1/2)*pi*k_1+pi/2^(1/2)) i k_1 należy do I

x in { 35^(1/2)*pi*k_1+pi/2^(1/2), -(35^(1/2)*pi*k_1+pi/2^(1/2)) }

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