Question

simplify and Express the result in the form of a plus i b
(1) (1-i) ²(1+i)-(3-4i) ²
(2) (1+i)³-(1-i) ³
(3) (1+2i)-¹

Answer 1

1) ans is 7+24i
2) ans is 6+4i
3) ans is (1/5)-2i/5