Упростите выражение 1- x+xx (x- x)(1/ x- 1)
sin(π-t)cos(2π-t) / tg(π-t)cos(π-t)
sin(π+t)sin(2π+t) / tg(π+t)cos(3π/2+t)
cos(180+α)cos(-α) / sin(-α) sin(90+α)
sin(π-α)cos(2π-α) / tg(π-α)sin(π/2+α)
(α+αα)ctgα

torra11    1   21.06.2021 19:56    2