Cos(x-3.14/2)

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Solution for Cos(x-3.14/2) equation: 


x in (-oo:+oo)

cos(x-(3.14/2)) = 0

cos(x-1.57) = 0

cos(x-(3.14/2)) = 0  <=>  x-(3.14/2) = pi*k_1+pi/2 i k_1 należy do I

t_1 = pi*k_1+pi/2

x-t_1-(3.14/2) = 0

x-t_1-1.57 = 0

x-t_1-1.57 = 0 // + -t_1-1.57

x = -(-t_1-1.57)

x = t_1+1.57

x = pi*k_1+pi/2+1.57 i k_1 należy do I

x = pi*k_1+pi/2+1.57

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