It would be very kind if you give me the solutions of the following questions= Q1.a,b,c are positive numbers in GP and the equation (a+di)x2 +2(b+ei)x +(c+if) =0 have only one real root then a/c , b/e , c/f are in HP/GP/AP? (i=iorta) Q2.Length of shortest normal chord of y2 =4x is ? Q3.Let P be a point on the ellipse (x-2y+3)2/125 + (2x+y-1)2 /45 =1 and A and B are the foci of the ellipse. Find the maximum area of triangle ABP.

aman mahajan , 13 Years ago

Grade 12