What is the exact value of tangent of open paren 19 pi over 12 close paren ?
A
the fraction with numerator 3 plus square root of 3 and denominator 3 minus square root of 3B
the fraction with numerator 1 minus square root of 3 and denominator 1 plus square root of 3C
the fraction with numerator 3 minus square root of 3 and denominator 3 plus square root of 3D
the fraction with numerator 1 plus square root of 3 and denominator 1 minus square root of 3