1.

Find the correct pair of statements: (i) The point of intersection of tangents at 't_(1)' and 't_(2) on the parabola y^(2)=4x is (t_(1)t_(2),t_(1)+t_(2)) (ii) Ax^(2)+Bxy+Cy^(2)+Dx+Ey+F=0 represents an ellipse if B^(2)-4ACgt0 (iii) The equation of tangent at (1,-3) to the parabola x^(2)+6x+4y+5=0 is 2x+y+1=0 (iv) Parametric representation of a conic is unique.

Answer»

(i) and (III) are CORRECT
(i) and (II) are correct
(iii) and (IV) are correct
(ii) and (iv) are correct

Answer :A


Discussion

No Comment Found

Related InterviewSolutions