If X = 3 Cot θ,Use Trigonometric Substitution to Write $\sqrt { 9 + x ^ { 2 } }$

question 55

Multiple Choice

If x = 3 cot θ,use trigonometric substitution to write $\sqrt { 9 + x ^ { 2 } }$ as a trigonometric function of θ,where $0 < \theta < \pi$ . ​

• A)​3 sec θ
• B)​3 csc θ
• C)​3 cos θ
• D)​3 sin θ
• E)​3 cot θ

---

Definitions:

U.S. Population

The total number of people living in the United States, a figure that is determined through census data.

Price Elasticity

A metric revealing how demand for a good varies in response to price changes.

Quantity Demanded

The total amount of a good or service that consumers are willing and able to purchase at a given price over a specified period of time.

Medically Uninsured

Individuals who do not have health insurance coverage, making them potentially financially vulnerable to high medical costs.