A complex number has a real and an imaginary part
is a complex number
A complex number is represented as:
Where:
<em /><em> real</em>
<em /><em> imaginary</em>
<em />
By comparing the options to ;
and
are not complex numbers
This is so because they do not have imaginary parts
However,
is a complex number
Because; 9i is imaginary
Read more about complex numbers at:
Answer:
Step-by-step explanation:
hello :
look this solution
Answer:
No
Step-by-step explanation:
An extraneous solution is a root of a transformed equation which is not a root of the original equation because it was not included in the domain of the original equation.
Ahmed is solving for x.
His steps were:
Since cube roots <u>do not give two solutions when solved</u>, it is <u>not necessary </u>to check his answers for extraneous solutions.