" If "U_(n)=sin m theta sec^(*)theta,V_(n)=cos n theta sec^(n)theta" for "n=0,1,2;...." then "V_(n)-V_(n-1)+U_(n-1)tan theta

If U_(n) = sin n theta.sec^(n)theta, V_(n)=cosnthetasec^(n)theta for n=0,1,2,……. Then V_(n)-V_(n-1) + U_(n-1) tan theta = ?

If U_(n) = sin n theta*sec^(n)theta, V_(n) = cosntheta*sec^(n)theta for n= 0,1,2,… then V_(n) -V_(n-1)+U_(n-1)tantheta =

If u_(n)=sin(n theta) sec^(n) theta, v_(n)=cos(n theta) sec^(n) theta , n in N, n ne 1," then " (v_(n)-v_(n-1))/(u_(n-1))+(1)/(n)(u_(n))/(v_(n)) =

If u_(n)=sin(n theta)sec^(n)theta,v_(n)=cos(n theta)sec^(n)thetan in Nn!=1 then (v_(n)-v_(n-1))/(u_(n-1))+(1)/(n)((u_(n))/(v_(n)))=

If u_(n)=sin(n theta)sec^(n)theta,v_(n)=cos(n theta)sec^(n)thetan in N,n!=1, then (v_(n)-v_(n-1))/(v_(n-1))+(1)/(n)((u_(n))/(v_(n)))

If cos theta + sec theta = 2 then cos^(n) theta + sec^(n) theta =

If u_n= sin (ntheta) sec^ntheta , v_n= cos(ntheta)sec^ntheta , n in N , n!=1 , then (v_n-v_(n-1))/v_(n-1)+1/n(u_n/v_n) =

If cos theta+sec theta=2 then cos^(n)theta+sec^(n)theta=2 .Find n=

If cos theta + sec theta = 2 then cos^(n)theta+ sec^(n)theta is equal to ___