JEE Math Practice Question
The pair of lines represented by $$$3a{x^2} + 5xy + \left( {{a^2} - 2} \right){y^2} = 0$$$ are perpendicular to each other for :
- A.two values of $$a$$
- B.$$\forall \,a$$
- C.for one value of $$a$$
- D.for no values of $$a$$
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