Q.
The two lines represented by 3ax2+5xy+(a2−2)y2=0 are perpendicular to each other for
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a
two values of a
b
a
c
for one value of a
d
for no value a
answer is A.
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Detailed Solution
3a+a2−2=0 or a2+3a−2=0 or a=−3±9+82=−3±172Therefore, there are two values of a.
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