4. if sin θ and cos θ are the roots of the equations ax2-bx2+c = 0, then a, b and c satisfy the relation.
(a) a2+b2+2ac=0
(b) a2-b2+2ac=0
(c) a2+c2+2ac=0
(d) a2-b2-2ac=0
4. if sin θ and cos θ are the roots of the equations ax2-bx2+c = 0, then a, b and c satisfy the relation.
(a) a2+b2+2ac=0
(b) a2-b2+2ac=0
(c) a2+c2+2ac=0
(d) a2-b2-2ac=0