Answer
$0.05389$
Work Step by Step
Assume $x$ is a real number in radian, its corresponding angle in degrees would be $\frac{180x}{\pi}$.
Graph the function $y=sin(x)-sin(\frac{180x}{\pi})$ as shown in the figure.
The first positive zero would be the smallest number which satisfy the equation $y=0$.
We can find that this number as $x=0.05389$
