sec and cot of an angle resulting in different signs for the answer
Posted on 2011-03-13
I've got a question which gives the sec and cot of an angle (theta).
On working out the angle for each expression, the answer is the same for both, but the sign is different (i.e. one positive and one negative).
Both answers fall within the range given for theta (greater than negative pi, less than pi).
What, then, is the "correct" answer?