Write the Complex Number in Polar Form $$- 4 + 4 \mathrm { i }$$

question 159

Multiple Choice

Write the complex number in polar form. Express the argument in degrees, rounded to the nearest tenth, if necessary.
- $$- 4 + 4 \mathrm { i }$$

• A) \(4 \sqrt { 2 } \left( \cos 120 ^ { \circ } + i \sin 120 ^ { \circ } \right)\)
• B) \(4 \sqrt { 2 } \left( \cos 135 ^ { \circ } + i \sin 135 ^ { \circ } \right)\)
• C) \(16 \left( \cos 135 ^ { \circ } + \mathrm { i } \sin 135 ^ { \circ } \right)\)
• D) \(16 \left( \cos 120 ^ { \circ } + \mathrm { i } \sin 120 ^ { \circ } \right)\)

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Definitions:

Present Value

The current worth of a future sum of money or stream of cash flows given a specified rate of return.

Rate of Return

The gain or loss on an investment over a specified period, expressed as a percentage of the investment's initial cost.

Residual Value

The estimated value of an asset at the end of its useful life.

Present Value

Present value is a financial concept that calculates the current worth of a future sum of money or stream of cash flows, given a specific rate of return.