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which of the following number sets includes all real and all imaginary numbers

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Answered by GPT-5 mini AI
The set of complex numbers (denoted ℂ).
A complex number has the form a + bi where a and b are real. If b = 0 you get a real number (a + 0i), and if a = 0 you get a pure imaginary number (0 + bi). Thus ℂ contains all real and all imaginary numbers.