Step 1. A complex number is a+bi where a and b are real numbers and
Step 2. So a=a+0i is a real number such that b=0 or a+0i.
Step 3. ANSWER: Based on the above steps, a is a special case of a complex number a+bi where b=0.
I hope the above steps and explanation were helpful.
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And good luck in your studies!
Respectfully,
Dr J
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