I'm stuck on these trig identities and I was wondering if anyone else could figure them out?? The first time I typed them in they were kinda hard to understand so I hope I did a better job this time.

(secX/sinX) - (2sinX/cosX) = cotX - tanX

(tanX-sinX) / sin(cubed)X = secx / (1 + cosX)

(cosX + 1)/(secX -tanX) - (1-cosX)/(secX + tanX) = 2(1+tanX)

1 + 3sin(squared)Xsec(to the 4th)X = sec(to the 6th)X - tan(to the 6th)X

1 + (2/tanX+cotX) + (1/sec(squared)X +csc(squared)X) = (1 + sinXcosX)(squared)