Perform the Indicated Operation $\left[ 5 \operatorname { cis } \frac { 4 \pi } { 9 } \right] ^ { 2 }$

question 4

Multiple Choice

Perform the indicated operation. Give answers in rectangular form expressing real and imaginary parts to four decimal
places.
- $\left[ 5 \operatorname { cis } \frac { 4 \pi } { 9 } \right] ^ { 2 }$

• A) \(- 23.4923 + 8.5505 i\)
• B) \(8.5505 - 23.4923 \mathrm { i }\)
• C) \(- 4.6985 + 1.7101 \mathrm { i }\)
• D) \(4.3412 + 24.6202 \mathrm { i }\)

Understand the basic principles and types of radiology, including the discovery and nature of X-rays.

Identify the specific diagnostic and therapeutic procedures in radiology, including their purposes and techniques.

Recognize the role of radiology in diagnosing and treating diseases, specifically in organs such as the brain, heart, and breast.

Understand the difference between invasive and non-invasive radiological procedures.