Answer :

Answer:

1.) cos T = 4/17

Step-by-step explanation:

Since this is a right triangle, we can use trig functions:

sin T = opposite side/ hypotenuse = XY / YT

cos T = adjacent side / hypotenuse = XT/ YT = 4/17

tan T = adjacent side /  opposite side =  XT/  XY

Answer: Option 1: cos T = 4/17

Step-by-step explanation:

Using the sine and cosine formula, we know that the format for sine is opposite/hypotenuse, and for cosine, the format is adjacent/hypotenuse. Therefore, option 1 is correct because cos T refers to the side adjacent to angle T, which would be side XT of length 4. The hypotenuse would be 17 since it's opposite the right angle.