trigonometric identities solver
I need help in this problems I'm a little confused..
verify each identity.. show your solution
1. sinx secx = tanx
2. tan(-x) cosx = -sinx
3. tanx cscx cosx = 1
4. secx - secx sin^2x = cosx
5. cos^2x-sin^2x= 1-2sin^2x
6. csc(data)-sin(data)=cot(data)cos(data)
7. tan(data)cot(data) = Sin(data)
csc(data)
8. sin^2(data) (1+cot^2(data))=1
9. sin(data) tan(data)= 1-cos^2(data)
cos(data)
10. csc^2x = cscxsecx
cotx
11. tan^2x = secx cosx
secx
12. sinx + cosx =1
cscx secx
13. Tanx + cosx = secx
1+sinx
14. 1- sin^2x = cosx
1+cosx
15. cosx + 1-sinx = 2secx
1-sinx cosx