If Z_{1}\;,Z_{2} and Z_{3} are complex numbers that lie on a straight line L and
Z_{4} = aZ_{1}+bZ_{2}+Z_{3} also lies on L,Then the appropriate values of 'a' and 'b' are
options::
(a)2,-5
(b)3,-7
(c)2,4
(d)None of these
Let a,b,c,d be four integers such that ad is odd and bc is even,
then ax^3+bx^2+cx+d = 0 has
options::
(a) at least one irrational roots
(b) all three rational roots
(c) all three integral roots
(d) none of these