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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Alka gupta
see....
did not you say it is an ellipse?
first of all your both qus are different-2....in your privous qus you send only a equation....which is yes an ellipse....but this qus is different.....and in 3D intersection curve not find by that method which you apply here
here we want to find intersection curve of a plane and and sphere ...for this just put y=0 in sphere ... because plane is x+z=a that is it is lies in xz plane
here equation of disc is x^2+z^2=a^2