Let $z _ { 1 } = 4 \left( \cos \frac { \pi } { 6 } + i \sin \frac { \pi } { 6 } \right)$

question 114

Multiple Choice

Let $z _ { 1 } = 4 \left( \cos \frac { \pi } { 6 } + i \sin \frac { \pi } { 6 } \right)$ and $z _ { 2 } = 5 \left( \cos \frac { \pi } { 3 } + i \sin \frac { \pi } { 3 } \right)$ ) Find $Z _ { 1 } Z _ { 2 }$

• A) \(20 + i\)
• B) \(20 - 20 i\)
• C) \(20\)
• D) \(0 - 20 i\)
• E)none

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Postretirement Healthcare Benefits

Benefits that an employer provides to retirees for healthcare, excluding pension benefits.

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Retirement plans funded either by employers or governments, providing income to individuals upon retirement.

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Generally Accepted Accounting Principles; the standard framework of guidelines for financial accounting used in any given jurisdiction, particularly in the United States.

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The present value of estimated future payments required to settle the obligations of a pension plan over its employees' expected future service.