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D( x )
x < 0
cos(2*x^(1/2)) = 0
x < 0
cos(2*x^(1/2)) = 0
cos(2*x^(1/2)) = 0
cos(2*x^(1/2)) = 0 <=> 2*x^(1/2) = pi*k_1+pi/2 i k_1 należy do I
t_1 = pi*k_1+pi/2
2*x^(1/2)-t_1 = 0
2*x^(1/2) = t_1 // : 2
x^(1/2) = t_1/2
x^(1/2) = t_1/2 // ^ 2
x = (t_1^2)/4
x = (pi*k_1+pi/2^2)/4 i k_1 należy do I
x in {( -oo : +oo ) / {( -oo : 0 ) U < (pi*k_1+pi/2^2)/4 : (pi*k_1+pi/2^2)/4 >}} i k_1 -> {I}
tan(2*x^(1/2)) = 0
tan(2*x^(1/2)) = 0 <=> 2*x^(1/2) = pi*k_1 i k_1 należy do I
t_1 = pi*k_1
2*x^(1/2)-t_1 = 0
2*x^(1/2) = t_1 // : 2
x^(1/2) = t_1/2
x^(1/2) = t_1/2 // ^ 2
x = (t_1^2)/4
x = (pi*k_1^2)/4 i k_1 należy do I
x = (pi*k_1^2)/4
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