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) \(\theta = \frac { 3 \pi } { 2 } + \mathrm { k } \pi\)

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Definitions:

Authoritarian Parents

Parents who enforce strict rules and expectations while providing little communication and nurturing to their children.

Diana Baumrind

An influential developmental psychologist known for her research on parenting styles and their effects on children.

Authoritative Parents

Authoritative parents employ a parenting style characterized by high responsiveness and high demands, encouraging independence while maintaining limits and controls.

Authoritarian Parents

Parents who enforce strict rules and expect obedience without questioning, often leading to a more obedient but less happy child.