Ctg и tg 75,150,250,340 формула приведение

Question

Ctg и tg 75,150,250,340 формула приведение

Answer 1

tg (π/2 + α) = - ctg α

tg (π + α) = tg α

tg (3π/2 + α) = - ctg α

tg (π/2 - α) = ctg α

tg (π - α) = - tg α

tg (3π/2 - α) = ctg α

tg (2π - α) = tg α

ctg (π/2 + α) = - tg α

ctg (π + α) = ctg α

ctg (3π/2 + α) = - tg α

ctg (π/2 - α) = tg α

ctg (π - α) = - ctg α

ctg (3π/2 - α) = tg α

ctg (2π - α) = ctg α