So by the trigonometric identities, , but according to my calculator, , and . how can this be, seeing as isnt true??
OK yes i did find on my calculator, because my calculator does not have a secant key. I even searched through all its functions and didn't find it. So I now have 2 more questions:
(1) how do you find cosecant, secant, and cotangent on a TI-85 graphing calculator, and
(2) why are and different?