If the roots of the cubic equation `ax^3+bx^2+cx+d=0` are in G.P then

If the roots of the equation x^(3) + bx^(2) + cx + d = 0 are in arithmetic progression, then b, c and d satisfy the relation

If the roots of the equation x^(3) + bx^(2) + cx + d = 0 are in arithmetic progression, then b, c and d satisfy the relation

Find the condition that the roots of the equation ax^3+bx^2+cx+d=0 are in A.P.

The roots of the equation x^(5)-40x^(4)+ax^3+bx^2+cx+d=0 are in G.P. If sum of reciprocals of the roots is 10, then

If the roots of the equation x^3 + bx^2 + cx - 1=0 form an increasing G.P, then

If the roots of the equation x^(3) + bx^(2) + cx - 1 = 0 form an increasing G.P., then b belongs to the interval