Hello,
N is closed for an opération(µ) means that
a,b ∈ N : a µ b ∈N (i suppose so)
Answer (1) ex 2/3 ∉ N
Answer (4) ex 2-3 ∉ N
∀ a,b ∈ N: a+b ∈N is true ; not a answer.
∀ a,b ∈ N: a*b ∈N is true ; not a answer.
Answer:
To me it looks like B
Step-by-step explanation:
RIP King Von
- 4 1/3 = -(4*3+1)/3 =-13/3
-2 3/5 = -(5*2+3)/5 = -13/5
-13/3 divided by -13/5
-copy dot flip
-13/3 *-5/13
5/3
1 2/3
Choice A
Answer:
I will try to do it
Step-by-step explanation:
