Optellen en aftrekken (a+bi)

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Bereken

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

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Bereken

Verbetersleutel

1. \((-3-5i)+(-10+i)= -3-5i -10+i =\color{red}{-3-10}\color{blue}{-5i +i}=\color{red}{-13}\color{blue}{-4i}\)
2. \((-5-10i)+(-8-4i)= -5-10i -8-4i =\color{red}{-5-8}\color{blue}{-10i -4i}=\color{red}{-13}\color{blue}{-14i}\)
3. \((3+10i)-(7+3i)= 3+10i -7-3i =\color{red}{3-7}\color{blue}{+10i -3i}=\color{red}{-4}\color{blue}{+7i}\)
4. \((2-5i)-(2-2i)= 2-5i -2+2i =\color{red}{2-2}\color{blue}{-5i +2i}=\color{blue}{-3i}\)
5. \((10-10i)-(5+6i)= 10-10i -5-6i =\color{red}{10-5}\color{blue}{-10i -6i}=\color{red}{5}\color{blue}{-16i}\)
6. \((-6-8i)-(5-6i)= -6-8i -5+6i =\color{red}{-6-5}\color{blue}{-8i +6i}=\color{red}{-11}\color{blue}{-2i}\)
7. \((-9-3i)+(-3-6i)= -9-3i -3-6i =\color{red}{-9-3}\color{blue}{-3i -6i}=\color{red}{-12}\color{blue}{-9i}\)
8. \((-4-5i)-(6+2i)= -4-5i -6-2i =\color{red}{-4-6}\color{blue}{-5i -2i}=\color{red}{-10}\color{blue}{-7i}\)
9. \((10-2i)+(-10+5i)= 10-2i -10+5i =\color{red}{10-10}\color{blue}{-2i +5i}=\color{blue}{3i}\)
10. \((2-i)+(-5+4i)= 2-i -5+4i =\color{red}{2-5}\color{blue}{-i +4i}=\color{red}{-3}\color{blue}{+3i}\)
11. \((1+i)-(1-5i)= 1+i -1+5i =\color{red}{1-1}\color{blue}{+i +5i}=\color{blue}{6i}\)
12. \((7-6i)-(8-6i)= 7-6i -8+6i =\color{red}{7-8}\color{blue}{-6i +6i}=\color{red}{-1}\)