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Oops! For the second equation, the sad face should be = then bracket...

*Fixed*

**raindropsonroses**- Replies: 6

Hello everyone, I was wondering if someone could help me prove a couple trig identities for am assignment?

Here they are:

(cosx/1+sinx) + (cosx/1-sinx)= 2/cosx

(cosx/1+sinx)=(1-sinx/cosx)

(sinx+tanx/cosx+1)=tanx

1+(sinx+cosx)(cosx-sinx)=2cos*squared*x

(cosx+sinxtanx)/tanx=1/sinx

1/sin*squared*x + 1/ cos*squared*x = 1/sin*squared*xcos*squared*x

I know it's a lot and I hope it's not too confusing the the squares and whatnot.

Help would be greatly appreciated!

Thanks :)

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