Answer:
The answer to your question is the third choice secФ = 41/40
Step-by-step explanation:
Data
Opposite side = 9
Adjacent side = 40
hypotenuse = 41
Process
To solve this problem use trigonometric functions. The secant is the trigonometric function that relates the hypotenuse and the adjacent side.
sec Ф = hypotenuse / adjacent side
hypotenuse = 41
adjacent side = 40
then,
secФ = 41/40
