Solve the Equation $$\cos ( 2 \theta ) = \frac { \sqrt { 2 } } { 2 }$$

question 101

Multiple Choice

Solve the equation. Give a general formula for all the solutions.
- $$\cos ( 2 \theta ) = \frac { \sqrt { 2 } } { 2 }$$

• A) \(\theta = \frac { \pi } { 8 } + 2 \mathrm { k } \pi , \theta = \frac { 7 \pi } { 8 } + 2 \mathrm { k } \pi\)
• B) \(\theta = \frac { 2 \pi } { 3 } + \mathrm { k } \pi , \theta = \frac { 4 \pi } { 3 } + \mathrm { k } \pi\)
• C) \(\theta = \frac { \pi } { 4 } + \mathrm { k } \pi , \theta = \frac { 3 \pi } { 4 } + \mathrm { k } \pi\)
• D) \(\theta = \frac { \pi } { 8 } + \mathrm { k } \pi , \theta = \frac { 7 \pi } { 8 } + \mathrm { k } \pi\)

Comprehend how shifts in aggregate demand influence the economy.

Identify the effects of fiscal policy on aggregate demand.

Analyze the impact of government spending and taxes on the economy.

Understand the concept of the multiplier effect and how it operates within the economy.

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Definitions:

Business Credit

The ability of a business to obtain goods, services, or money based on the trust that payment will be made in the future.

Tolerance for Ambiguity

The ability of an individual to remain comfortable and continue to function effectively in situations that are uncertain, unknown, or unclear.

Internal Locus

A psychological attitude where an individual believes that they can control their life and outcomes rather than external forces.