Question 391031
A)cot theta=√5/5
tan and cot are reciprocals of each other. The reciprocal of a negative is also negative. So this choice cannot be correct.
B)cos theta=-√6/6
Cos is positive in the 4th quadrant so this cannot be the correct choice.
C)sin theta=√30/6
sin is negative in the 4th quadrant so this cannot be the correct choice.
D)sec theta=√6
By the process of elimination this must be correct.