the locus of the mid pt. of a chord of the circle x2 +y2 =4,which subtend a right angle at the origin is:

3 years ago

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Answers : (1)

                                        

radius of circle=2


so length of chord=2√2


let O be origin and P be mid-point of chord


OP=sqrt(4-2)=√2


so locus is x2+y2=2

3 years ago

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