tan{(n pi)/(2)+(-1)n(pi)/(4)}=1

[" If "sin x sin(60^(@)+x)sin(60^(@)-x)=(1)/(8)" then "],[x" equals "],[n pi+(-1)^(n)(pi)/(6)],[n(pi)/(3)+(-1)^(n)(pi)/(18)],[n pi+(-1)^(n)(pi)/(3)],[(n pi)/(-1)+(-1)^(n)(pi)/(4)]

underset(n to oo)lim 1/n [ tan pi/(4n) + tan (2pi)/(4n) + tan (3pi)/(4n) + …. + tan(npi)/(4n)] =

Evaluate the limit . lim_(n to oo) (1)/(n) [tan (pi)/(4n) + tan (2pi)/(4n) +………..tan (npi)/(4n)]

The value of lim_(n rarr oo)[tan((pi)/(2n))tan((2 pi)/(2n))......tan((n pi)/(2n))]^((1)/(n))

lim_(n to oo)(1)/(n)[tan.(pi)/(4n)+tan.(2pi)/(4n)+…..+tan.(n pi)/(4n)]

Evaluate : underset(n to oo)lim(1)/(n)["tan"(pi)/(4n)+"tan"(2pi)/(4n)+"tan"(3pi)/(4n)+…+ "tan"(npi)/(4n)]

Evaluate the following define integrals as limit of sums : lim_(n rarroo) 1/n [tan. (pi)/(4n) + tan. (2pi)/(4n)+....+tan. (n pi)/(4n)]

The value of lim_(n->oo) [tan(pi/(2n)) tan((2pi)/(2n))........tan((npi)/(2n))]^(1/n) is