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Quadratic equations + Progression series - misc Let `(A(alpha a, 0), B(beta,0), C(gamma,0), D(delta,0) and alpha, beta` are the roots of equation `ax^2 + 2hx+b= =0`. While `gamma,delta` , are those of `a-1x^2 + 2h_1x+b_1=0` If `C and D` divides AB in the ratio of mal and `gamma:1 and mu:1` respectively and also `ab_1, hh_1, a_1b` are in `A.P.,` then `lambda+mu` is equal to

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