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

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:

Accordion

The accordion is a musical instrument with pleated bellows, played by compressing and expanding while pressing buttons or keys to produce sound.

Bodily Kinesthetic Intelligence

One of Howard Gardner's multiple intelligences, referring to the capacity to manipulate objects and use physical skills effectively, often seen in athletes and dancers.

Howard Gardner

An American developmental psychologist best known for his theory of multiple intelligences, proposing that people have different kinds of intelligences.

Athlete

An individual who competes in sports or engages in physical exercise regularly.