`sectheta=2`

if tantheta+sectheta=l then prove that sectheta=(l^2+1)/(2l)

if tantheta+sectheta=l then prove that sectheta=(l^2+1)/(2l)

Prove: (1+sectheta)/(sectheta)=(sin^2theta)/(1-costheta)

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

If sectheta=x+(1)/(4x) ,prove that sectheta+tantheta=2xor(1)/(2x)*

If sectheta=x+(1)/(4x) ,prove that sectheta+tantheta=2xor(1)/(2x)*

If sectheta=x+1/(4x) ,prove that : sectheta+tantheta=2xor ,1/(2x)

If sectheta= x+1/(4x) , then prove that sectheta+tantheta=2x or 1/(2x) .

If tantheta+sectheta=((x-2))/((x+2)) , then what is the value of costheta ?

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