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The perfect squares,1,4,9,16,25,.......,are closed under what?A: additionB: multiplicationC: square-rootingD: none of these
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The perfect squares,1,4,9,16,25,.......,are closed under what?A: additionB: multiplicationC: square-rootingD: none of these

User Vivek Gaur
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Multiplication, Because a^4*b^4 = (a*b)^4.
User Avilac
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