Which of the following is the best definition of a complex number?
A. The set of all numbers in the form $ a+b i $, where $ a $ and $ b $ are imaginary numbers and $ i $ equals $ \sqrt{-1} $
B. The set of all numbers in the form $ a-b i $, where $ a $ and $ b $ are real numbers and $ i $ equals $ \sqrt{-1} $

C. The set of all numbers in the form $ a+b i $, where $ a $ and $ b $ are real numbers and $ i $ equals $ \sqrt{-1} $

D. The set of all numbers in the form $ a+b i $, where $ a $ and $ b $ are real numbers and $ i $ equals $ -1 $

Question

Which of the following is the best definition of a complex number?
A. The set of all numbers in the form $ a+b i $, where $ a $ and $ b $ are imaginary numbers and $ i $ equals $ \sqrt{-1} $
B. The set of all numbers in the form $ a-b i $, where $ a $ and $ b $ are real numbers and $ i $ equals $ \sqrt{-1} $

C. The set of all numbers in the form $ a+b i $, where $ a $ and $ b $ are real numbers and $ i $ equals $ \sqrt{-1} $

D. The set of all numbers in the form $ a+b i $, where $ a $ and $ b $ are real numbers and $ i $ equals $ -1 $

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Math Question

Solution

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