`(tantheta-sectheta)^2`

Simplify tan theta [(sectheta,tantheta),(tantheta,-sectheta)]+sectheta[(-tantheta,-sectheta),(-sectheta,tantheta)]

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

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

((1+tantheta+sectheta)(1+cottheta-cosectheta))/((sectheta+tantheta)(1-sintheta)) is equal to:

(1+cottheta-cosectheta)(1+tantheta+sectheta)=?

If theta epsilon (0, pi/2) then the value of |((sintheta+cosectheta)^2, (sintheta- cosectheta)^2,1 ),((costheta+sectheta)^2, (costheta-sectheta)^2, 1),((tantheta+cottheta)^2, (tantheta-cottheta)^2, 1)|= (A) sintheta+costhetas+tantheta (B) 1 (C) 0 (D) 4

tantheta-tantheta/2=sectheta/2

Prove that : (tan theta)/(sectheta+1)-(tantheta)/(1-sectheta)=2cosec theta

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

Prove that (tantheta+Sectheta+1)/(-tantheta+Sectheta+1)=(Costheta)/(1-Sintheta)