The set is not closed
Example:
-4 * -3 = 12 this is not a negative integer
Fibonacci is famous for his contributions to number theory.
In his book, Liber abaci he introduce the Hindu-Arabic place-valued decimal systems and the use of Arabic Numerals into Europe.He introduced the bar we use in fractions, previous to this, the numerator has quotations around it. The square root notation is also is Fibonacci method.
Step-by-step explanation:
what type of help u want......
Answer:
12.5%
Step-by-step explanation:
hope this helps and its right
