Optellen en aftrekken (a+bi)

Hoofdmenu Eentje per keer  🖨

Bereken

1. \((-8+5i)+(-3+3i)\)
2. \((-4+i)+(7+10i)\)
3. \((-3+10i)-(-6-6i)\)
4. \((-1+6i)-(7+9i)\)
5. \((-7+4i)-(5+5i)\)
6. \((4-6i)+(1+8i)\)
7. \((1+6i)-(-5-i)\)
8. \((-10-i)+(-10+9i)\)
9. \((-8-5i)-(-8+7i)\)
10. \((9+2i)+(7+2i)\)
11. \((3+i)+(9-2i)\)
12. \((-10+10i)-(-5+i)\)

---

Bereken

Verbetersleutel

1. \((-8+5i)+(-3+3i)= -8+5i -3+3i =\color{red}{-8-3}\color{blue}{+5i +3i}=\color{red}{-11}\color{blue}{+8i}\)
2. \((-4+i)+(7+10i)= -4+i +7+10i =\color{red}{-4+7}\color{blue}{+i +10i}=\color{red}{3}\color{blue}{+11i}\)
3. \((-3+10i)-(-6-6i)= -3+10i +6+6i =\color{red}{-3+6}\color{blue}{+10i +6i}=\color{red}{3}\color{blue}{+16i}\)
4. \((-1+6i)-(7+9i)= -1+6i -7-9i =\color{red}{-1-7}\color{blue}{+6i -9i}=\color{red}{-8}\color{blue}{-3i}\)
5. \((-7+4i)-(5+5i)= -7+4i -5-5i =\color{red}{-7-5}\color{blue}{+4i -5i}=\color{red}{-12}\color{blue}{-i}\)
6. \((4-6i)+(1+8i)= 4-6i +1+8i =\color{red}{4+1}\color{blue}{-6i +8i}=\color{red}{5}\color{blue}{+2i}\)
7. \((1+6i)-(-5-i)= 1+6i +5+i =\color{red}{1+5}\color{blue}{+6i +i}=\color{red}{6}\color{blue}{+7i}\)
8. \((-10-i)+(-10+9i)= -10-i -10+9i =\color{red}{-10-10}\color{blue}{-i +9i}=\color{red}{-20}\color{blue}{+8i}\)
9. \((-8-5i)-(-8+7i)= -8-5i +8-7i =\color{red}{-8+8}\color{blue}{-5i -7i}=\color{blue}{-12i}\)
10. \((9+2i)+(7+2i)= 9+2i +7+2i =\color{red}{9+7}\color{blue}{+2i +2i}=\color{red}{16}\color{blue}{+4i}\)
11. \((3+i)+(9-2i)= 3+i +9-2i =\color{red}{3+9}\color{blue}{+i -2i}=\color{red}{12}\color{blue}{-i}\)
12. \((-10+10i)-(-5+i)= -10+10i +5-i =\color{red}{-10+5}\color{blue}{+10i -i}=\color{red}{-5}\color{blue}{+9i}\)