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lianochka2001
@lianochka2001
November 2021
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Спростити:
1)Sin x cos y + cos x sin y =
2) tg 47° - tg 17°/ 1+tg 47° * tg 17° =
3) cos 2α / cos α – sin α =
4)tg 2α / tg 4α – tg 2α =
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lianochka2001
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srochnoooooo nuzhna pomosh pozhalujsta
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reshite pozhalosta srochnoooooooo
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