Question: a . In a class, why do you include the function that overloads the stream insertion operator, < < , as a friend function? (

a. In a class, why do you include the function that overloads the stream insertion operator, <<, as a friend function? (5,6)
b. In a class, why do you include the function that overloads the stream extraction operator, >>, as a friend function? (5,6)
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