Question

alculate the subtraction (8.5−1.8i)−(−1.3+2.7i) . Provide the answer in the form of a+bi .(1 point)

Answer 1

To calculate the subtraction \((8.5−1.8i)−(−1.3+2.7i)\), we can first rewrite it as:

\[
(8.5 - 1.8i) + (1.3 - 2.7i)
\]

Now, we will combine the real and imaginary parts separately:

1. Real part:
\[
8.5 + 1.3 = 9.8
\]

2. Imaginary part:
\[
-1.8 - 2.7 = -4.5
\]

Putting these together, we have:

\[
9.8 - 4.5i
\]

Thus, the final result in the form \(a + bi\) is:

\[
\boxed{9.8 - 4.5i}
\]