SOLUTION: Prove that the given is an identity. 1 + (1/cosx)= tan^2x/(secx-1)

Algebra ->  Trigonometry-basics -> SOLUTION: Prove that the given is an identity. 1 + (1/cosx)= tan^2x/(secx-1)       Log On


   

Question 438458: Prove that the given is an identity.
1 + (1/cosx)= tan^2x/(secx-1)
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Prove that the given is an identity.
1 + (1/cosx)= tan^2x/(secx-1)
..
starting with right side
tan^2x/(secx-1)
sec^2x-1/secx-1
(secx+1)(secx-1)/(secx-1)
secx+1=1/cosx+1
right side= left side