Which shows all the exact solutions of 2 secant squared x minus 4th power of tangent x is equal to negative 1 ? Give your answer in radians.
A
pi over 3 plus 2 k pi and 5 pi over 3 plus 2 k piB
pi over 3 plus k pi , 2 pi over 3 plus k pi , 4 pi over 3 plus k pi , and 5 pi over 3 plus k piC
pi over 3 plus k pi and 2 pi over 3 plus k piD
pi over 4 plus 2 k pi , 3 pi over 4 plus 2 k pi , 5 pi over 4 plus 2 k pi , and 7 pi over 4 plus 2 k pi