Practice!

Sample Problem

Write the complex number √-2 ⋅ √-6 in standard form.

Solution

√-2 ⋅ √-6 = √2(√-1) ⋅ √6(√-1)=√2i ⋅ √6 i =√12i2= 2√3 i2=2√3 (-1)=-2√3