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

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

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

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

If the roots of the equation x^(3) + bx^(2) + 3x - 1 = 0 form a non-decreasing H.P., then

If the roots of the equation x^(3) + bx^(2) + 3x - 1 = 0 form a non-decreasing H.P., then

If the roots of the equation,x^(3)+px^(2)+qx-1=0 form an increasing G.P.wherep and qare real,then

If the roots of the equation, x^3 + px^2+qx-1 = 0 form an increasing G.P. where p and q are real,then

If the roots of the equation, x^3 + px^2+qx-1 = 0 form an increasing G.P. where p and q are real,then (a) p +q = 0 (b) p in (-3, oo) (c) one of the roots is unity (d) one root is smaller than 1 and one root is greater than 1

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