Answer:
The given expressions simplifies to tan (4x).
Step-by-step explanation:
Here, the given expression is : 
By TRIGONOMETRIC IDENTITY:

Putting this identity here, and taking A = 9 x, B = 5 x, we get

= tan(4x)
Hence, the given expressions simplifies to tan (4x).
X + Y = 180 so X = 122. W = X = 122. Z = Y = 58
hope it helps you!!!!!!!!!
Brainliest? The outcome of the second selection is not affected in any way by the outcome of the first selection. Therefore the events are independent.