cosx/secx+sinx/cscx=sec^2x-tan^2x

Answer 1

left and right are both 1

Answer 2

use sin squared + cos squared = 1

Answer 3

thanks

Answer 4

You are welcome. I did it out but was unable to post the solution. The board seems to be acting up.

Answer 5

Thats ok, I think I kind of understand it.