Answer:
It confirmed the constitutional doctrine of Congress’s implied powers.
Step-by-step explanation:
The effect of McCulloch v. Maryland (1819) is that "It confirmed the constitutional doctrine of Congress’s implied powers."
This is evident in the fact that the supreme court under Justice John Marshall ruled that the Congress had the jurisdiction to establish a national bank, even though the United States Constitution is not explicit on corporation establishment as well as the chartering of banks.
This outcome led to the constitutional doctrine of Congress's implied power such that Congress possess powers outrighy spelt out by the United States Constitution including those power that can aid such power to carry out those specifically described by the constitution.