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A straight line moves such that the algebraic sum of the perpendicular drawn to it from two fixed points is equal to . Then , the straight line always touches a fixed circle of radius

a)

b)

c)

d)

None of these



Question ID - 56000 | SaraNextGen Top Answer

A straight line moves such that the algebraic sum of the perpendicular drawn to it from two fixed points is equal to . Then , the straight line always touches a fixed circle of radius

a)

b)

c)

d)

None of these

1 Answer
127 votes
Answer Key / Explanation : (c) -

(c)

Let the coordinates  and  and let the straight line be . Then,

So, the straight line is

Clearly, it touches the circle  of radius

127 votes


127