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ntLet A be the set of all quadrilaterals in a plane and R+ be the set of positive real numbers. Prove that the function f:A→R+ defined by f(x) = area of quadrilateral x, is many-one and onto.n |
| Answer» ntLet A be the set of all quadrilaterals in a plane and R+ be the set of positive real numbers. Prove that the function f:A→R+ defined by f(x) = area of quadrilateral x, is many-one and onto.n | |