Given:
The figure of a right triangle.
and perpendicular = 12.
To find:
The measure of angle y.
Solution:
In a right angle triangle,

In the given right angle triangle,




Therefore, the measure of angle y is
.
The correct answer is -9/22.
Hello,
f(π/2)=4*sin(π/2)-2=4*1-2=2
f(0)=4*sin(0)-2=0-2=-2
rate=(2+2)/(π/2-0)=8/π
Answer D