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Prove that 2n > n for all positive integers n by the Principle of Mathematical Induction Prove that 2n > n for all positive integers n by the Principle of Mathematical Induction
Welcome to askIITiansAssume that P(n): 2n> nIf n =1, 21>1. Hence P(1) is trueLet us assume that P(k) is true for any positive integer k,It means that, i.e.,2k> k …(1)We shall now prove that P(k +1) is true whenever P(k) is true.Now, multiplying both sides of the equation (1) by 2, we get2. 2k> 2kNow by using the property,i.e., 2k+1> 2k = k + k > k + 1Hence, P(k + 1) is true when P(k) is true.Therefore, P(n) is true for every positive integer n is proved using the principle of mathematical induction.Thanks
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