Expand, Where I $i ^ { 2 } = - 1$

question 53

Multiple Choice

Expand, where i $i ^ { 2 } = - 1$
- $$\left( \frac { 1 } { \sqrt { 2 } } + \frac { i } { \sqrt { 2 } } \right) 4$$

• A) \(1 - \mathrm { i }\)
• B) \(- 1\)
• C) 1
• D) \(1 + \mathrm { i }\)

---

Definitions:

Percentage

A rate, number, or amount in each hundred, used to describe proportions and comparisons between quantities.

Small for Date

A term used to describe newborns that are smaller than the average for their gestational age, often due to factors affecting growth in the womb.

Preterm

A birth that occurs 35 or fewer weeks after conception.

Gestation

The process or period of developing inside the womb between conception and birth.