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

sec4theta - sec2theta=2

sec^(4)theta - sec^(2)theta equals

If sec 4 theta - sec 2 theta = 2 " then " theta =

If sec4theta - sec2theta=2 then theta eqals to -

If x=sectheta-costheta,y=sec^(n)theta-cos^(n)theta , then ((dy)/(dx))^(2) is :

sqrt(sec^2theta-1)/(sectheta)

If x=sectheta-costheta,y=sec^(10)theta-cos^(10)theta and (x^(2)+4)((dy)/(dx))^(2)=k(y^(2)+4) . Then k is equal to

z_3^2/(z_1.z_2)= (A) sec^2.cos2theta (B) costheta.sec^22theta (C) cos^2theta.sec2theta (D) sectheta.sec^22theta