Question: 3. a. Is 22n=O(2n) ? Explain clearly b. Is 2n+1=O(2n) ? Explain clearly c. Show that (n+a)b=(nb) for any real a,b with b>0 d. Show

3. a. Is 22n=O(2n) ? Explain clearly b. Is 2n+1=O(2n) ? Explain clearly c. Show that (n+a)b=(nb) for any real a,b with b>0 d. Show that lgn!=w(n) Hint: Use the substitution x=lgn
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