| http://www.w3.org/ns/prov#value | - n -multiples of 5( x+y=can result in multiple of 5 or non multiple of 5 )Both x and y CANNOT be multiples of 5 -Not sufficientCombining (1) and (2) Either one of x and y is a multiple of 5 or Both x and y are non -multiples of 5this meanseither x2 or y2 is a multiple of 5 or both are non multiples of 5x2+y2- this can result in a multiple of 5 or a non multiple - so Not sufficientAnswer -(E) lagome
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