Question
Question: If a line segment AM = a moves in the plane XOY remaining parallel to OX so that the left end point ...
If a line segment AM = a moves in the plane XOY remaining parallel to OX so that the left end point A slides along the circle x2 + y2 = a2, the locus of M is
A
x2 + y2 = 4a2
B
x2 + y2 = 2ax
C
x2 + y2 = 2ay
D
x2+y2 –2ax–2ay = 0
Answer
x2 + y2 = 2ax
Explanation
Solution
‘A’ lies on circle
Ю (a – a)2 + b2 = a2