August 2022 0 14 Report
Решите, пожалуйста
а) [tex] \frac{1}{sin^2x} - \frac{3}{cos( \frac{11 \pi } {2}+x) } =-2[/tex]
б) Укажите корни, принадлежащие [tex][ -2 \pi; - \frac {\pi} { 2} ][/tex]
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