$r=\cot\ \theta\ \csc\theta$  

 $r=\cot\ \theta\ \sin\ \theta$  

 $r=Sin\ \theta\ Sec\ \theta$  

2

4

8

 $\sqrt{2}+\sqrt{2}i$  

 $2+2i$  

 $2i\sqrt{2}$  

$Cos\ 90\degree+i\ \sin\ 90\degree$

$3\left(\cos\ 30\degree+i\ \sin\ 30\degree\right)$

$Sin\ 30\degree+i\ \sin\ 30\degree$

3

5

2

صح

خطا