September 2018 1 52 Report
Sprawdz prawdziwosc rownosci ( alfa - kat ostry ) :

a. (sin alfa + cos alfa )do drugiej + (sin alfa - cos alfa)do drugiej = 2

b. tg alfa - ctg alfa = (tg alfa-1)(ctg alfa+1)

c. (tg alfa + ctg alfa)do drugiej = 1/sin do drugiej alfa * cos do drugiej alfa

d. 1/sin do drugiej alfa - 1 = ctg do drugiej alfa


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