`(tantheta)/(sectheta+1)+(sectheta+1)/(tantheta)=2cosectheta`

Prove the following: (tantheta)/(sectheta + 1)= (sectheta-1)/(tantheta)

Prove tantheta/(sectheta-1)+(tantheta)/(sectheta+1)=2cosectheta .

(tantheta+sectheta-1)/(tantheta-sectheta+1)=

(tantheta+sectheta-1)/(tantheta-sectheta+1)=

. (tantheta +sectheta-1)/(tantheta -sectheta+1) =

tantheta /(1-cottheta ) + cottheta/(1-tan theta)= 1+sectheta*cosectheta

(tantheta)/(sectheta-1)+(tantheta)/(sectheta+1) is equal to (a) 2tantheta (b) 2sectheta (c) 2\ cos e c\ theta (d) 2\ t a nthetasectheta

((cosectheta-sectheta)(cottheta-tantheta))/((cosectheta+sectheta)(sectheta.cosectheta-2))=?

Prove the following tantheta/(1-cottheta) +cottheta/(1-tantheta) =sectheta.cosectheta+1=1+tantheta+cottheta

If tantheta+sectheta=8 then sectheta-tantheta is