The numbers in the set {x|x= a/b, where a, b are integers and b ≠ 0} are called

value of sinx = 3/z

Step-by-step explanation:

In right angled triangle,

tanx = length of opposite side/ length of adjacent side = 3/y

cosx = length of adjacent side/ length of hypotenuse = y/z

So, we get,

length of opposite side=3

length of adjacent side=y

length of hypotenuse= z

Hence, sinx = length of opposite side/ length of hypotenuse

i.e. sinx = 3/z