Evaluate the Expression and Write the Result in the Form $\left( 7 - \frac { 5 } { 2 } i \right) - \left( 5 + \frac { 7 } { 2 } i \right)$

question 70

Essay

Evaluate the expression and write the result in the form a + bi. $\left( 7 - \frac { 5 } { 2 } i \right) - \left( 5 + \frac { 7 } { 2 } i \right)$

---

Definitions:

Symbols

Objects, characters, figures, or colors used to represent abstract ideas or concepts.

Concrete Operational Thought

A stage of cognitive development in children, as defined by Piaget, where they can think logically about concrete events but struggle with abstract concepts.

Sleep Terrors

Intense episodes of fear that occur during sleep, often accompanied by screaming, kicking, or panicking, without the sleeper fully waking up.

Nightmares

Disturbing dreams that cause the dreamer to wake up feeling stressed, scared, or anxious, often recalling the dream vividly.