Question

The equation $a x ^ { 2 } + b y ^ { 2 } + 2 h x y + 2 g x + 2 f y + c = 0$ will

represent a circle, if.

• A. $a = b = 0$ and $c = 0$
• B. $f = g$ and $h = 0$
• C. $a = b \neq 0$ and $h = 0$
• D. $f = g$ and $c = 0$

Answer 1

Answer: (C)

$a = b \neq 0$ and $h = 0$

Answer 2

It is a fundamental concept.