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A number of the form a plus ib with real a and b is called:
ANatural
BComplex
CRational
DIrrational
Answer & Solution
Correct answer: B. Complex
1. The form pairs a real part with a multiple of i.
2. Both a and b are real numbers.
3. Such a number is a complex number.
_Source: NCERT Class 11 Mathematics, Chapter 5, Complex Numbers and Quadratic Equations._
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