Question: Prove the following: a ) f ( n ) = 2 n + 2 is O ( n ) , but f ( n )

Prove the following:
a)f(n)=2n+2 is O(n), but f(n)=22n+2 is not O(2n)
b)f(n)=O(g(n)), where f(n)=6n and g(n)=n2-3n
Prove the following: a ) f ( n ) = 2 n + 2 is O (

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