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  • Complex Numbers
  • Tests in Complex Numbers
  • Adding and subtracting complex numbers

Adding and subtracting complex numbers

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  • Question 1:
    1 pts
    		Add: $(2 + 3i) + (3-4i)$

    $5+7i$

    $5-7i$

    $5+i$

    $5-i$

  • Question 2:
    1 pts
    		Add: $(-5-11i) + (4-6i)$

    $1-5i$

    $1-17i$

    $-1-17i$

    $-1-5i$

  • Question 3:
    1 pts
    		Subtract: $(5-3i) - (3-2i)$

    $2-i$

    $2+i$

    $2-5i$

    $2+5i$

  • Question 4:
    1 pts
    		Subtract: $(-1-i) - (3-5i)$

    $4-4i$

    $-4+4i$

    $-2+4i$

    $2-4i$

  • Question 5:
    2 pts
    		Simplify expression $2(1-i) - 3(3-5i)$

    $-11+17i$

    $-7-13i$

    $-7+13i$

    $11-17i$

  • Question 6:
    2 pts
    		Simplify expression $-3(5-2i) - 4(2-i)$

    $-23+10i$

    $-23-10i$

    $17+10i$

    $17-10i$

  • Question 7:
    2 pts
    		Which point represents the sum of complex numbers $z1$ and $z2$.
    A
    B
    C
    D
  • Question 8:
    2 pts
    		Which point represents the sum of complex numbers $z1$ and $z2$.
    A
    B
    C
    D
  • Question 9:
    2 pts
    		Which point represents the difference of complex numbers $z1$ and $z2$.
    A
    B
    C
    D
  • Question 10:
    2 pts
    		Which point represents the difference of complex numbers $z1$ and $z2$.
    A
    B
    C
    D

Complex numbers

Sequences and series