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Which of the following is a complex number?

Which of the following is a complex number?
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Which of the following is a complex number?

Which of the following is a complex number?-example-1
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Answer:

A. 3√(7/5) +√(-9/5)

Explanation:

The square root of a negative number is imaginary. Only answer choice A contains any imaginary numbers, so only answer choice A is complex.

User Jammycakes
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