Сколько будет: tg2x+3*tg2x = ? и tg2x+1/2*tg2x = ?
Tg2x+3*tg2x = 4*tg(2x) = 4*(2tgx / (1-tg^2(x)) = 8tgx/ (1-tg^2(x)) tg2x+1/2*tg2x = 1.5*tg(2x) = 1.5*(2tgx / (1-tg^2(x)) = 3tgx / (1-tg^2(x))