The phase shift is the value of the angle when the variable
in the angle is zero.
The angle in the sin function in this equation is (pi X + 2).
When the variable 'X' is zero, the angle is 2 .
So the phase shift of this sin function is 2 (of whatever
the unit of the angle is ... 2 degrees, 2 radians, etc.)
The answer is Eight ninetieths
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We have the triangle 30° - 60° - 90°.
The lenght of the sides are in proportion: 

Answer:
Step-by-step explanation:
Y=1/2y
Answer: -107pi/45 radians