$\text { Find the integrating factor of the differential equation } ( x + 3 y ) d x - 3 \cot x d y = 0 \text { that }$

question 15

Multiple Choice

$\text { Find the integrating factor of the differential equation } ( x + 3 y ) d x - 3 \cot x d y = 0 \text { that }$ is a function of x or y alone.

• A) \(1 + 3 \cot x\)
• B) \(\cos x\)
• C) \(\sin x\)
• D) \(- 3 \cos x\)
• E) \(- 3 \sin x\)

---

Definitions:

Baseline

The initial set of measurements or observations taken in a study, used as a reference point for assessing change or effects of interventions.

Intervention

The action or process of intervening, often to bring about a change or prevent a problem.

Graphing

A process of representing data visually using charts, plots, or diagrams to illustrate relationships or patterns within the data.

Immediate Feedback

The prompt response given after a task or activity, aimed at reinforcing learning or correcting mistakes.