Family of numbers-
Complex number-It is denoted by "Z".
Ex-0,-2,8,15/7,2i+8,√7.
Real number-It is denoted by "R".
Ex-0,-5,27,3/8,√12.
Imaginary number-It is denoted by "I".
Ex-2i,3+4i,-7i.
Note- i=√-1.
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