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Write the following sets iroster from: K = {x : ϵ N, x is a multiple of 5 and x2 < 400}. |
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Answer» Multiple of 5 are 5, 10, 15, 20, 25, 30, … So, 52 = 25 102 = 100 152 = 225 202 = 400 252 = 625 > 400 The elements which are multiple of 5 and x2 < 400 are 5, 10, 15 So, K = {5, 10, 15} |
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