December 2021 0 5 Report
1) В треугольнике ABC угол C = 90   tgA = √51/7   Найти sinB 2) В треугольнике ABC угол C = 90   ВС = 8  cosA =  √21/5 Найти АВ
3) В треугольнике ABC угол C = 90   BC = 3√91   AC=9 Найти cosA
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