triangle LJK {image for reference attached}

JK is 39 , KL is 65 , JL is 52 . what is the COS of K and the SIN of L to the simplest form and are they equal plus explain why. (also explain if the oppisite side is the one that is facing the angle that is asked about or based on the triangle in this seneario)

triangle LJK image for reference attached JK is 39 KL is 65 JL is 52 what is the COS of K and the SIN of L to the simplest form and are they equal plus explain class=