Question

найдите значание выражения  26/ (sin -47п/6 cos32п/3)

Answer 1

26/ (sin -47п/6 cos32п/3)=26/(sin((-48p+p)/6)cos((33p-p)/3))=26/(sin(-8p+p/6)cos(11p-p/3))=26/(sin(p/6)(-cos(p/3)))=26/(1/2(-1/2))=-26/(1/4)=-26*4=-104