Question

The equation ax^2 +by^2 +2hxy+2gx+2fy+c=0 represents a circle only if
a) area not equal to zero , h^2>ab
b) area not equal to zero , h^2<ab
c)area not equal to zero , h^2= ab
d)area= 0 , h^2=ab ​

Answer 1

Answer:

area not equal to zero, h^2= ab

Step-by-step explanation:

hope it will help you.

Answer 2

Step-by-step explanation:

The equation,

$\tt\purple{a {x}^{2} + b {y}^{2} + 2hxy + 2gx + 2fy + c = 0 }$,

$\sf\red{represents\:\:a\:\:circle\:\:if}$

• $\bold{\rm\:\triangle\not=0}$
• $\bold{\rm\:a=b}$
• $\bold{\rm\:h=0}$