1-cosx/1+cosx=secx-1/secx+1 Verify the identity. I tried all identities that I could, but could not find how it worked. Can you show me how to verify with all steps?

I usually do not ask on but I've tried everything else and still got nothing.
Currently in Algebra 2 and in the 9th grade.

How many temperature in biratnagar

Ill mark the brainliest if you me with the these three questions 7,8,9

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?