How to verify identities.

[xalexandraa]

I need some help on verifying the following identities:
1) sinx/secx = (1/tanx+cotx)
2) (cotx+cotxcosx+sinx)/cscx = 1+sinxcosx
3) (1-cosx)/(1+cosx) = (cscx-cotx)^2

Help would be greatly appreciated.

 

[Deleted member 4993]

I need some help on verifying the following identities:
1) sinx/secx = (1/tanx+cotx)
2) (cotx+cotxcosx+sinx)/cscx = 1+sinxcosx
3) (1-cosx)/(1+cosx) = (cscx-cotx)^2

Help would be greatly appreciated.

Convert everything to sine and cosine - and then show left-hand-side equals right-hand-side.

Please show your work, indicating exactly where you are stuck - so that we would know where to begin to help you.