If `u_n=sin(n theta) sec^n theta,v_n=cos(ntheta)sec^ntheta ` `n in N n!=1` then `(v_n-v_(n-1))/...
1,375 views · Published 12 October 2018 · 6:35 · Indexed 27 September 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW If `u_n=sin(n theta) sec^n theta,v_n=cos(ntheta)sec^ntheta ` `n in N n!=1` then `(v_n-v_(n-1))/(u_(n-1))+1/n (u_n/v_n)=`
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