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Найти tg[tex] \alpha [/tex], если tg2[tex] \alpha [/tex]= [tex]\frac{1}{3} [/tex]
Найти tg[tex] \alpha [/tex], если tg2[tex] \alpha [/tex]= [tex]\frac{1}{3} [/tex]
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Пусть t = tgα.
t₁ + t₂ = -6
t₁*t₂ = -1
t₁ = -3
t₂ = 2
Значит, tgα = -3, tgα = 2.