Let a and B Be Sets with Cardinal Numbers, N(A)= $n ( A \cup B ) = n ( A ) - n ( B )$

question 228

True/False

Let A and B be sets with cardinal numbers, n(A)= a and n(B)= b, respectively. Decide whether the statement is true or false.
- $n ( A \cup B ) = n ( A ) - n ( B )$

---

Definitions:

Net Income

The remaining income of a firm after deducting every expense and tax from the gross revenue.

Divisional Income

The income generated by a specific division or segment of a larger company, useful for assessing the division's financial performance.

Residual Income

The amount of income that an individual has after all personal debts and expenses, including a mortgage, have been paid.

Minimum Return

The lowest acceptable return on investment that an investor is willing to accept, often used in evaluating projects or performance.