Вычислите:
1). cos(-П)×sin(-П/2)×sin(-3П/2)
2). 2cos(-П)×cos(-2П)×sin(-3П/2)
3). sin(-П)+cos(-П)+tg(-П)
1). cos(-П)×sin(-П/2)×sin(-3П/2)
2). 2cos(-П)×cos(-2П)×sin(-3П/2)
3). sin(-П)+cos(-П)+tg(-П)
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