Respuesta:
11
Explicación paso a paso:
senx = cos(90° - x)
cosx = (sen90° - x)
cos48° = sen(90° - 48°) = sen42°
(8 sen 42° + 3 cos 48°) cosec 42° = (8 sen42° + 3sen42°) . 1/sen42° =
11sen42°. 1/sen42° = 11. 1 = 11
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Respuesta:
11
Explicación paso a paso:
senx = cos(90° - x)
cosx = (sen90° - x)
cos48° = sen(90° - 48°) = sen42°
(8 sen 42° + 3 cos 48°) cosec 42° = (8 sen42° + 3sen42°) . 1/sen42° =
11sen42°. 1/sen42° = 11. 1 = 11