SOLUTION: what is the answer of this questions: 1.) (-3-3√3)^2 2.) 5 ÷i 3.) 1÷(2i-3) 4.)(3+2i÷(2-i) 5.) (3+ 2i) ÷ 4 6.) 1 ÷ ( 3+ √-2)

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: what is the answer of this questions: 1.) (-3-3√3)^2 2.) 5 ÷i 3.) 1÷(2i-3) 4.)(3+2i÷(2-i) 5.) (3+ 2i) ÷ 4 6.) 1 ÷ ( 3+ √-2)       Log On


   

Question 666443: what is the answer of this questions:
1.) (-3-3√3)^2
2.) 5 ÷i
3.) 1÷(2i-3)
4.)(3+2i÷(2-i)
5.) (3+ 2i) ÷ 4
6.) 1 ÷ ( 3+ √-2)
Answer by swincher4391(1107) About Me  (Show Source):
You can put this solution on YOUR website!
%28-3%2A3%2Asqrt%283%29%29%28-3%2A3%2Asqrt%283%29%29 foil this out to get 243.
2)5%2Fi+=+5%2Fi+%2A+%28i%2Fi%29+=+5i%2F-1+=++-5i
3)
4) Do the same thing. Multiply by the conjugate over the conjugate. The conjugate being 2+i.
5) (3+2i)/4 = 3/4 + 1/2i
6) 1/(3+sqrt(-2)) = 1/(3+2i) then multiply by the conjugate over the conjugate. The conjugate is 3-2i.