108k views
0 votes
If $q = 11-5i$, $e = 11 5i$, and $d = 2i$, find $q\cdot e \cdot d$.

User Hoa Nguyen
by
8.2k points

1 Answer

7 votes

Final answer:

To calculate the product of the complex numbers q, e, and d, first multiply q and e to get 96, then multiply that result by d to end up with 192i.

Step-by-step explanation:

The question requires us to calculate the product of three complex numbers: q = 11 - 5i, e = 11 + 5i, and d = 2i. To do this, we will multiply these numbers step by step.

  • First, multiply q and e: (11 - 5i)(11 + 5i). This is a product of two conjugates, which results in a difference of squares: 121 - (-5i)^2 = 121 - 25 = 96.
  • Now, multiply the result by d: 96(2i) = 192i.

Hence, the product q · e · d equals 192i.

User Peter Kelley
by
8.5k points