alleryThe symbol i is defined as a solution of the equation:
Ax squared plus 1 is 0
Bx squared minus 1 is 0
Cx squared plus 2 is 0
Dx squared minus 2 is 0
Answer & Solution
Correct answer: A. x squared plus 1 is 0
1. No real number squares to minus one.
2. A new symbol is introduced to fill that gap.
3. So i is a solution of x squared plus 1 equals 0.
_Source: syllabus Mathematics, Chapter 5, Complex Numbers and Quadratic Equations._
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