2tanx

2tanx

Input
2 tan(x)
Alternate form assuming x is real
(2 sin(2 x))/(cos(2 x) + 1)
Roots
x = pi n, n element Z
Series expansion at x=0
2 x + (2 x^3)/3 + (4 x^5)/15 + O(x^6)
(Taylor series)
Derivative
d/dx(2 tan(x)) = 2 sec^2(x)
Indefinite integral
integral 2 tan(x) dx = -2 log(cos(x)) + constant

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