SOLUTION: Prove the Identity: Tan^2x/ secx +1 = 1-cosx/ cosx

Algebra ->  Trigonometry-basics -> SOLUTION: Prove the Identity: Tan^2x/ secx +1 = 1-cosx/ cosx       Log On


   

Question 1014290: Prove the Identity:
Tan^2x/ secx +1 = 1-cosx/ cosx
Answer by ikleyn(52815) About Me  (Show Source):
You can put this solution on YOUR website!
.
Use the definition of tan(x) as sin%28x%29%2Fcos%28x%29 and the definition of sec(x) as 1%2Fcos%28x%29 and do the rest yourself.

Good luck.