IDNLearn.com: Where curiosity meets clarity and questions find their answers. Discover trustworthy solutions to your questions quickly and accurately with help from our dedicated community of experts.

Melissa and Tomas are playing a game with complex numbers. If Melissa has a score of [tex]$5-4i$[/tex] and Tomas has a score of [tex]$3+2i$[/tex], what is their total score?

A. [tex][tex]$8-6i$[/tex][/tex]
B. [tex]$8+6i$[/tex]
C. [tex]$8-2i$[/tex]
D. [tex][tex]$8+2i$[/tex][/tex]


Sagot :

Let's break down the solution step-by-step to find the total score of Melissa and Tomas.

1. Identify the scores in the form of complex numbers:
- Melissa's score: [tex]\( 5 - 4i \)[/tex]
- Tomas's score: [tex]\( 3 + 2i \)[/tex]

2. Add the real parts of their scores:
- The real part of Melissa's score is [tex]\( 5 \)[/tex].
- The real part of Tomas's score is [tex]\( 3 \)[/tex].
- Real part of the total score: [tex]\( 5 + 3 = 8 \)[/tex].

3. Add the imaginary parts of their scores:
- The imaginary part of Melissa's score is [tex]\( -4i \)[/tex].
- The imaginary part of Tomas's score is [tex]\( 2i \)[/tex].
- Imaginary part of the total score: [tex]\( -4 + 2 = -2 \)[/tex].

4. Combine the real and imaginary parts to form the total score:
- The total score combines the real part [tex]\( 8 \)[/tex] and the imaginary part [tex]\( -2i \)[/tex].
- Hence, the total score is [tex]\( 8 - 2i \)[/tex].

Therefore, the combined score of Melissa and Tomas is [tex]\( 8 - 2i \)[/tex].

The correct answer is:
[tex]\[ \boxed{8 - 2i} \][/tex]