Simplify the following expression:
1/(1 + loga (bc)) + 1/(1 + logb (ac)) + 1/(1 + logc (ac))
Note that a, b, c are greater than 0 but none is equal to 1.
Simplify the product into the form a/b for integers a and b that are relatively prime.
Suppose the binary operation ☆ is defined so that
x ☆ y = (x + y) / (1 + xy).
Simplify the expression
{ … [(2 ☆ 3) ☆ 4] ☆ … } ☆ 2021
