Perform the Indicated Operation $$( 4 - 9 i ) ^ { 2 }$$

question 16

Multiple Choice

Perform the indicated operation. Write the result in standard form.
- $$( 4 - 9 i ) ^ { 2 }$$

• A) \(97 - 72 \mathrm { i }\)
• B) \(16 + 81 \mathrm { i }\)
• C) \(16 - 81 \mathrm { i }\)
• D) \(- 65 - 72 \mathrm { i }\)

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Definitions:

Placebo Effect

A psychological phenomenon where a fake treatment improves a person's condition simply because they believe the treatment will work.

Operational Definition

A carefully worded statement of the exact procedures (operations) used in a research study. For example, human intelligence may be operationally defined as what an intelligence test measures.

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Test Performance

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