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If a line segement A M=a moves in the pl...

If a line segement `A M=a` moves in the plane `X O Y` remaining parallel to `O X` so that the left endpoint `A` slides along the circle `x^2+y^2=a^2,` then the locus of `Mdot`

A

`x^(2)+y^(2)=4a^(2)`

B

`x^(2)+y^(2)=2ax`

C

`x^(2)+y^(2)=2ay`

D

`x^(2)+y^(2)-2ax-2ay=0`

Text Solution

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The correct Answer is:
B
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