Find the Given Power $\left[ 2 \operatorname { cis } 15 ^ { \circ } \right] ^ { 4 }$

question 10

Multiple Choice

Find the given power. Write answer in rectangular form.
- $\left[ 2 \operatorname { cis } 15 ^ { \circ } \right] ^ { 4 }$

• A) \(8 + 8 i \sqrt { 3 }\)
• B) \(16 \mathrm { i }\)
• C) \(8 + 8 \mathrm { i }\)
• D) \(8 \sqrt { 3 } + 8 i\)

Identify the methods for document authentication and verification through digital signatures and stamps.

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Definitions:

Sample Bias

A bias that occurs in research when the sample is not representative of the population from which it was drawn, potentially leading to skewed and unreliable results.

Research Participants

Individuals or entities who take part in scientific studies, contributing data through their experiences or reactions.

Qualitative Research

A research strategy focused on understanding phenomena through the analysis of non-numerical data, such as interviews, observations, and texts.

Quantitative Research

A research method focusing on obtaining data through objective measurements and statistical, mathematical, or numerical analysis of data collected through polls, questionnaires, and surveys.