Ответ:
(3sina+5cosa)/(4cosa-3sina*cosa/sina)=3/20
(3sina+5cosa)/cosa=3/20
3cosa=60sina+100 cosa
60sina=-97cosa
tga=-97/60
a=-arctg(97/60)+Пk k∈Z
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Ответ:
(3sina+5cosa)/(4cosa-3sina*cosa/sina)=3/20
(3sina+5cosa)/cosa=3/20
3cosa=60sina+100 cosa
60sina=-97cosa
tga=-97/60
a=-arctg(97/60)+Пk k∈Z