Wartość wyznaczenia tanges 32* - tanges 148* jest równa:
a) tg 180*
b) 1
c) 0
d) 2tg 32*
tg148° = tg(2*90° - 32°) = -tg32°
tg32° - (-tg32°) = tg32° + tg32° = 2tg32°
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tg148° = tg(2*90° - 32°) = -tg32°
tg32° - (-tg32°) = tg32° + tg32° = 2tg32°
----------------------------------------------------------------------------------------------------
Litterarum radices amarae sunt, fructus iucundiores
Pozdrawiam :)