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12th Math MCQS Introduction to Analytic Geometry Online Test 02
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1
of
19
The lines a, x + b, y + c
1
= 0 and a
2
x + b
2
y + c
2
= 0 will be perpendicular is:
a
1
c
2
+ a
1
c
2
= 0
a
1
a
2
= b
1
b
2
a
1
a
2
+ b
1
b
2
= 0
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