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Q.) If ( (ax^2 + c)y + (a'x^2 + c') = 0 ) and ( x ) is a rational function of ( y ) and ( ac ) is negative, then:
[A]
ac' + a'c = 0
[B]
a/ a' = {c}/{c'}
[C]
a^2 + c^2 = a'^2 + c'^2
[D]
aa' + cc' = 1
[A] ac' + a'c = 0
[B] a/ a' = {c}/{c'}
[C] a^2 + c^2 = a'^2 + c'^2
[D] aa' + cc' = 1
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