Сколько будет:tg2x+3*tg2x = ?и tg2x+1/2*tg2x = ?
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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))