Posted by leslie on Sunday, December 7, 2008 at 3:43pm.
prove the identity: (tan theta)/(csc theta) + 1/(sec theta)= sec theta

precalc  Reiny, Sunday, December 7, 2008 at 4:55pm
I will use x instead of theta for simpler typing
LS = sinx/cosx(sinx) + cosx
= (sin^2 x + sin^2 x)/cos x after I found a common denomiator of cos x
= 1/cos x
= sec x
= RS