Complete:

If z=5+6i then Re(z)=________.

Complete:

If z=5+6i then Im(z)=________.

Complete:

5+2i is a ____________.

Is the sentence true or false?

If $\alpha$ is real number and $\beta$ is complex number then $\alpha+\beta$ is complex number.

Which one is a real number?

Complete:

Seven is a __________.

Complete:

For a complex number a+ib, imaginary part is represented with ________.

Is the sentence true or false?

$i^5=1$.

Complete:

For a complex number, $i^2=$ ________.

Is the sentence true or false?

If α is real number and β is complex number then αβ is real number.