A curve ax2 + 2hy + by2+2gx+2fy+c =0 is an ellipse if . A. h2 − ab= 0 B. h2 − ab˃0 C. h2 − ab˂0 D. h2 + ab≤0 View AnswerC. h2 − ab˂0 Related MCQs Evaluate (-1)2i . Which one is multivalued. By Laplace equation Vr is equal to. If Z=x+𝑖y , then ǀezǀ is. If x2+y2= 25 , then the locus of Z is. If a function is differentiable then that function is. f(z) = 1/z-1 has an isolated singularity at z is equal to. By using Cauchy’s Goursat theorem where c is an ellipse then value of ⌠c 1/z2 . f(z) = 1/z-2 at z = 2 it possess a singularity. f(z) = 1/z-4 has singularity at z = 0.