Which expression is equivalent to tangent of open paren x minus pi close paren ?
A
the fraction with numerator tangent of x minus tangent of pi and denominator 1 minus tangent of x times tangent of piB
the fraction with numerator tangent of x plus tangent of pi and denominator 1 plus tangent of x times tangent of piC
the fraction with numerator tangent of x plus tangent of pi and denominator 1 minus tangent of x times tangent of piD
the fraction with numerator tangent of x minus tangent of pi and denominator 1 plus tangent of x times tangent of pi