ա) sinx + cosx = 0

(sinx * cosx)

tgx = 3

x = arctg3

sinx = 8

v = arcsin8

sinx = -cosx

x = – p/4 + pk

sinx = cosx p/4

ctgx = 6

x = arcctg6

cosx = -6

x = arccos (-6) = arccos6

tgx + 1 = 0

tgx = -1

x = arctg1 + pk

tgx + 1/tgx = 0

tg²x + 1 – 0

x- 0

բ) <3cosx – sinx = 0

<3cosx – sinx * cosx = 0

cosx, ❤ = -sin² = 0

sinx = 0

❤ = sin = cos

x = pk, k- z