If `sectheta+costheta=2` then `sin^2theta+tan^2theta=`

If sintheta=costheta then 2tan^(2)theta+sin^(2)theta-1=___ .

If : sectheta+costheta=2 "then" : sec^(2)theta-sec^(4)theta=

if costheta_1+costheta_2+costheta_3=3 then sin^2theta_1+sin^4theta_2+sin^6theta_3=

Prove that (((1+cot theta +tan theta)(sintheta-costheta))/(sec^3theta -cosec^3theta)) = (sin^2theta cos^2theta)

Find the value of tan ^2theta sin^2 theta+ sin^2 theta-tan^2theta-1 =0

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

If costheta_1 =2costheta_2, then tan((theta_1-theta_2)/2)tan((theta_1+theta_2)/2) is equal to

If theta is an acute angle and sintheta=costheta , then find the value of 2tan^(2)theta+sin^(2)theta-1 .

If sec theta-tan theta=x and sectheta+tan theta=1/x then class sin theta and cos theta

Prove the following (sintheta +cosectheta) ^2+(costheta+sectheta) ^2=7+tan^2theta+cot^2theta