Respuesta :

a+bi is a complex number, where a is the real part and bi is the complex part



A. true, if x is a real number then x+bi where b=0 is a complex number

B. true, as from the above statement

C. nope, it is usually a+bi

D. correct


the incorrect option is C

The variable z i.e. used frequently represents the complex number is incorrect.

The following information should be considered:

  • Here a +bi denotes the complex number. A represents the real portion while on the other hand b denotes the complex portion.
  • Each and every number should be treated as a complex number.
  • In the case when x should be the real number so x+bi so b = 0 represent the complex number.

Therefore we can conclude that the variable z i.e. used frequently represents the complex number is incorrect.

Learn more: brainly.com/question/17429689