A = {1,2,3}, B= {2, 1, 3}, C= {1, 2, 3, 2} হলে লেখা যায়-
i. A=B
ii. B=C
iii. A=B=C
নিচের কোনটি সঠিক?

Created: 4 months ago | Updated: 2 months ago

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