Respuesta :

calculista
we know that
in the right triangle
sinθ=opposite side/hypotenuse
cosθ=adjacent side/hypotenuse
tanθ=opposite side/adjacent side

in this problem
opposite side angle θ=8
adjacent side angle θ=15
hypotenuse=17
so

sinθ=8/17
cosθ=15/17
tanθ=8/15