Solve the Equation $2 \cos \theta + 1 = 0$ A) $\theta = \frac { \pi } { 2 } + 2 \mathrm { k } \pi , \theta = \frac { 3 \pi } { 2 } + 2 \mathrm { k } \pi$

question 178

Multiple Choice

Solve the equation. Give a general formula for all the solutions.
- $2 \cos \theta + 1 = 0$

• A) \(\theta = \frac { \pi } { 2 } + 2 \mathrm { k } \pi , \theta = \frac { 3 \pi } { 2 } + 2 \mathrm { k } \pi\)
• B) \(\theta = \frac { 2 \pi } { 3 } + 2 \mathrm { k } \pi , \theta = \frac { 4 \pi } { 3 } + 2 \mathrm { k } \pi\)
• C) \(\theta = \frac { 2 \pi } { 3 } + \mathrm { k } \pi , \theta = \frac { 4 \pi } { 3 } + \mathrm { k } \pi\)
• D) \(\theta = \frac { 3 \pi } { 2 } + \mathrm { k } \pi\)

Recognize the legal considerations and interview preparation strategies for job applicants.

Understand the structure and purpose of various job-search messages.

Recognize the importance of maintaining job-search activities after securing a position.

Comprehend the reverse chronological layout for résumés.

---

Definitions:

Endodermis

The endodermis is the innermost layer of cells in the root cortex of plants, serving as a selective barrier that regulates the flow of water and nutrients from the soil into the vascular system.

Vascular Cylinder

The central part of a root or stem containing the plant's vascular tissue, including xylem and phloem, responsible for water and nutrient transport.

Cortex

The outer layer of an organ or structure, such as the cerebral cortex of the brain or the cortex of the kidney.

Epidermis

The outer layer of cells covering an organism, particularly the surface layer of skin.