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Используя четырёхзначные таблицы Брадиса, найди:

1. а) \(\sin 13\degree\) , \(\sin 31\degree\) , \(\sin 54\degree\) , \(\sin 63\degree\) ;

   б) \(\sin 17\degree6'\) , \(\sin 41\degree18'\) , \(\sin 65\degree30'\) , \(\sin 81\degree54'\) .

2. а) \(\cos 72\degree\) , \(\cos 47\degree\) , \(\cos 39\degree\) , \(\cos 27\degree\) ;

   б) \(\cos 82\degree18'\) , \(\cos 58\degree36'\) , \(\cos 24\degree54'\) , \(\cos 12\degree6'\) .

3. а) \(\tg 20\degree\) , \(\tg 53\degree\) , \(\tg 64\degree\) , \(\tg 86\degree\) ;

   б) \(\tg 31\degree18'\) , \(\tg 36\degree30'\) , \(\tg 68\degree12'\) , \(\tg 86\degree20'\) .

4. а) \(\ctg 17\degree\) , \(\ctg 44\degree\) , \(\ctg 59\degree\) , \(\ctg 78\degree\) ;

   б) \(\ctg 24\degree18'\) , \(\ctg 46\degree36'\) , \(\ctg 55\degree54'\) , \(\ctg 83\degree30'\) .

Ответ:

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