The existence proof of the empty set is an absolute gem
Answer:
∠z is 79°
Step-by-step explanation:
Answer:
oogla boogla
Step-by-step explanation:
Answer:
Step-by-step explanation:
yes i think so
We haven n! = (n-1)! x n and (n+1)! = n! x (n + 1);
Then, (n!)^2 = n! x n! = n! x (n-1)! x n;
And (n+1)!(n-1)! = n! x (n + 1) x (n-1)!;
Finally, [n! x (n-1)! x n] / [n! x (n + 1) x (n-1)!] = (n+1)/n;