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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Alka gupta
see
how you are telling the surface is not closed can you explain that
surface is not bounded by yz and xz planes
qus lenguage is also said " S is surface of cylinder x2+y2=16 included in the first octant between z=0 and z=5"
how can we find it is bounded easily
means???