Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal places where appropriate. If there is no solution, enter NO SOLUTION.)

cos θ sin θ − 7 cos θ = 0

θ =

The trigonometric equation is $\"\"$ .

Solve the equation.

$\"\"$

Factors are $\"\"$ and $\"\"$

General solution for $\"\"$ : $\"\"$

General solution for $\"\"$ .

Since $\"\"$ is greater than one, thus it has no real solution.

Let $\"\"$ is an integer value,then

$\"\"$

The solution of the trigonometric equation

$\"\"$