If f(x)=tan(x)f(x) = \tan(x)f(x)=tan(x), what is f′′(x)f''(x)f′′(x)?
2sec2(x)tan(x)2\sec^2(x)\tan(x)2sec2(x)tan(x)
sec2(x)\sec^2(x)sec2(x)
sec2(x)tan(x)\sec^2(x)\tan(x)sec2(x)tan(x)
2sec(x)tan(x)2\sec(x)\tan(x)2sec(x)tan(x)