20 ____ \ ` \ ________ \ / /1\ / / tan|-| / \/ \k/ /___, k = 1
Sum(sqrt(tan(1/k)), (k, 1, 20))
________ __________ __________ __________ __________ __________ __________ __________ __________ ___________ ___________ ___________ ___________ ___________ ___________ ___________ ___________ ___________ ___________ ___________ \/ tan(1) + \/ tan(1/2) + \/ tan(1/3) + \/ tan(1/4) + \/ tan(1/5) + \/ tan(1/6) + \/ tan(1/7) + \/ tan(1/8) + \/ tan(1/9) + \/ tan(1/10) + \/ tan(1/11) + \/ tan(1/12) + \/ tan(1/13) + \/ tan(1/14) + \/ tan(1/15) + \/ tan(1/16) + \/ tan(1/17) + \/ tan(1/18) + \/ tan(1/19) + \/ tan(1/20)
sqrt(tan(1)) + sqrt(tan(1/2)) + sqrt(tan(1/3)) + sqrt(tan(1/4)) + sqrt(tan(1/5)) + sqrt(tan(1/6)) + sqrt(tan(1/7)) + sqrt(tan(1/8)) + sqrt(tan(1/9)) + sqrt(tan(1/10)) + sqrt(tan(1/11)) + sqrt(tan(1/12)) + sqrt(tan(1/13)) + sqrt(tan(1/14)) + sqrt(tan(1/15)) + sqrt(tan(1/16)) + sqrt(tan(1/17)) + sqrt(tan(1/18)) + sqrt(tan(1/19)) + sqrt(tan(1/20))
x^n/n
(x-1)^n
1/2^(n!)
n^2/n!
x^n/n!
k!/(n!*(n+k)!)
csc(n)^2/n^3
1/n^2
1/n^4
1/n^6
1/n
(-1)^n
(-1)^(n + 1)/n
(n + 2)*(-1)^(n - 1)
(3*n - 1)/(-5)^n
(-1)^(n - 1)*n/(6*n - 5)
(-1)^(n + 1)/n*x^n
(3*n - 1)/(-5)^n