Posted by **olivia** on Friday, March 23, 2012 at 8:10pm.

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

- precal -
**Damon**, Friday, March 23, 2012 at 10:22pm
left and right are both 1

- precal -
**Damon**, Friday, March 23, 2012 at 10:23pm
use sin squared + cos squared = 1

- precal -
**olivia**, Friday, March 23, 2012 at 10:28pm
thanks

- precal -
**Damon**, Friday, March 23, 2012 at 10:33pm
You are welcome. I did it out but was unable to post the solution. The board seems to be acting up.

- precal -
**olivia**, Friday, March 23, 2012 at 10:38pm
Thats ok, I think I kind of understand it.

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