Write the Complex Number in Rectangular Form $9 \left( \cos 180 ^ { \circ } + i \sin 180 ^ { \circ } \right)$

question 150

Multiple Choice

Write the complex number in rectangular form.
- $9 \left( \cos 180 ^ { \circ } + i \sin 180 ^ { \circ } \right)$

• A) 9
• B) \(- 9 \mathrm { i }\)
• C) \(9 \mathrm { i }\)
• D) \(- 9\)

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Definitions:

Recursive Call

A method call where the method being called is the same as the one making the call.

Factorial Method

A factorial method is a function that calculates the product of all positive integers less than or equal to a given number, expressing n! for a number n.

Integer 3

A specific instance of an integer data type, representing the numeric value 3.

Underlying Data Structure

The specific arrangement or organization of data in memory that supports the implementation and functionality of higher-level data types or structures.