4. Suppose \( T(v_1) = w_1 + w_2 + w_3 \), \( T(v_2) = w_2 + w_3 \), and \( T(v_3) = w_3 \). What coefficients \( \alpha, \beta, \gamma \) gives \( T(\alpha v_1 + \beta v_2 + \gamma v_3) = w \). (10 分)