the locus of the mid pt. of a chord of the circle x2 +y2 =4,which subtend a right angle at the origin is:
KAMAL RAWAT , 12 Years ago
Grade 12
Analytical Geometry> ex.4.5 q.4...
1 Answers
Chetan Mandayam Nayakar
Last Activity: 12 Years ago
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
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