Rozwiąż:
a)
a) ctg |2x| = 1
|2x| = pi/4 v |2x|= 5pi/4
2x = pi/4 , -pi/4 , 5pi/4 , - 5pi/4 => 2x = kpi/4
x = kpi/8, k= calkowite
b)Rozwiazujemy rownanie kwadratowe dla sinx:
x =2kpi + pi/2 v x = pi/4 + kpi
c)
d)
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a) ctg |2x| = 1
|2x| = pi/4 v |2x|= 5pi/4
2x = pi/4 , -pi/4 , 5pi/4 , - 5pi/4 => 2x = kpi/4
x = kpi/8, k= calkowite
b)Rozwiazujemy rownanie kwadratowe dla sinx:
x =2kpi + pi/2 v x = pi/4 + kpi
c)
d)