hlib283 hlib283
  • 29-03-2024
  • Mathematics
contestada

У трикутнику АВС кут В прямий. Оберіть правильні твердження:
AB = AC cos A
tg C = ctg A
AB
AC/sin C
sin B = cos A
AC BC/sin A
AB = AC sin B
BC tg C = AB
AB
BC/cos A

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