Factor and simplify
sec⁴x-tan⁴x÷sec²x + tan²
X
Verify the identity​

Awrestling tournament begins with 128 competitors. in the first round, each competitor has 1 match against another wrestler. the winner of each match moves on to the next round until there is a winner. write a sequence in which the terms represent the number of players still in the tournament at the end of each round. describe the sequence? how many rounds are in the tournament?

What is the solution to the equation in the & show work i’m very

Identify the number as a rational or irrational.explain. 127