Answer:
+ closed
- closed
* closed
÷ not closed
Step-by-step explanation:
When you add integers, you will always get an integer so it is closed under addition
When you subtract integers, you will always get an integer so it is closed under subtraction
When you multiply integers, you will always get an integer so it is closed under multiplication
When you divide integers, you will not always get an integer so it is not closed under division
1/5 = .2 which is not an integer
Answer:
13
Step-by-step explanation:
hope i helped
Answer:
trick question, the cat is going to die anyways so forget the food
Step-by-step explanation:
Answer:(C14H21NO11)n
Step-by-step explanation:
Answer:
Step-by-step explanation:
hello :
note :
for all x in ℝ : 1) sin(x+2kπ) = sinx ...k in Z 2) sin(-x) = -sinx
in this exercice :
sin(-4π-x)= sin(-x) = -sinx because : -4π = 2(-2)π (form : 2kπ when : k=-2)