Parabolas 
and 
where 
and 
are variable, are such that they touch each other. Locus of their point of contact is
a)
b)
c)
d)
None of these
Parabolas and where and are variable, are such that they touch each other. Locus of their point of contact is
a)
b)
c)
d)
None of these
Question ID - 56024 | SaraNextGen Top Answer
Parabolas and where and are variable, are such that they touch each other. Locus of their point of contact is
a)
b)
c)
d)
None of these
|
Parabolas |
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|
a) |
|
b) |
|
c) |
|
d) |
None of these |
1 Answer
127 votes
Answer Key / Explanation : (b) -
(b)
Let 
be the point of contact. At ‘
’ both of them must have same slope. We have,
Eliminating 
we get 
127 votes
Answer Link
127