5.1 Reciprocal, Quotient, and Pythagorean Identities
1. cosx tanx to sinx
3. secx cotx sinx to 1
5. sin x secx cscx to tanx
7. tanx + cotx to cscx secx
9. cscx - sinx to cotx cosx
11. tanx (sinx + cotx cosx) to secx
13. (1 + sinx)(1 - sinx) to cos x
15. (cosx-sinx) to 1-2cosxsinx
17. (tanx + cotx) to sec x + csc x
19. csc x - 1
cosx
to cotx cscx
21. sec x - 1
sinx
to tanx secx
23. secx
sinx
25.
sinx
cosx
1
1 - cosx
to cotx
1
1 + cosx
to 2csc x