Respuesta :

mhanifa

Answer:

  • d/c

Step-by-step explanation:

Given:

  • sin y° = 9/c and
  • tan y° = 9/d

We know that

  • tan α = sin α /cos α ⇒ cos α = sin α / tan α

Solving for cos y°, by substituting values:

  • cos y°  = sin y° / tan y°
  • cos y°  = 9/c ÷ 9/d =
  •               9/c × d/9 =
  •               d/c
richeshagreen2801

Answer:

the answer to your question is d/c