Express $\sqrt{-100}$√−100 in terms of $i$i.
Express $-\sqrt{-29}$−√−29 in terms of $i$i.
Express $\sqrt{-28}$√−28 in terms of $i$i.
Express $-9+\sqrt{-64}$−9+√−64 in terms of $i$i.
Extend previous understanding of the real number system to include the complex number system. Add, subtract, multiply and divide complex numbers.