Respuesta :

elliottou

Answer:

D. sec(a) = 13/5

Step-by-step explanation:

if sin(a) = 12/13, then cos (a) = 5/13, because of 5-12-13 triangles

sec(a) = 1/cos(a)

1/(5/13) = 13/5

sec(a) = 13/5