Consider the trigonometric equation is $\"\"$ .

The solutions of $\"\"$ is $\"\"$ and $\"\"$ in the interval $\"\"$ .

Now consider the trigonometric equation is $\"\"$ .

The solutions of $\"\"$ is $\"\"$ and $\"\"$ in the interval $\"\"$ .

So, the equation that has the solutions of $\"\"$ , $\"\"$ , $\"\"$ , and $\"\"$ is $\"\"$ .

$\"\"$

Thus, the trigonometric equation is $\"\"$ .

The trigonometric equation is $\"\"$ .