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प्रश्न
Express the truth of each of the following statements using Venn diagram.
(1) All teachers are scholars and scholars are teachers.
(2) If a quadrilateral is a rhombus then it is a parallelogram..
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उत्तर
(1) Let U : Set of all human beings.
A : Set of a ll teachers.
B : Set of all scholars.
(2) Let U : Set of all quadrilaterals.
A : Set of all rhombus.
B: Set of all parallelogram.
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