Complex Number

$$\sqrt[]{-49}=$$  

(a)  

$$5-\sqrt[]{-100}=$$  

(a)  

$$5i^5+i^3=$$  

$$\left(1+i\right)+\left(2-i\right)=$$  

(a)  

$$\left(1+i\right)\left(2-i\right)=$$  

(3+i)-(1-i)=

(a)  

Solve $$\frac{2-i}{1+i}$$  and write answer in a+bi

Find argument for p=3-i

Find modulus for p=3+i

$$\left(\sqrt[]{2}\angle45\degree\right)\times\left(\sqrt[]{5}\cos\ 333.43\degree+i\sin333.43\degree\right)$$