Question

O cálculo de (3 + 7 i) – (5 – 4 i), resulta:

Answer 1

$\large\boxed{\begin{array}{l} \displaystyle\sf (3+7i)-(5-4i)\\\\\displaystyle\sf Subtraia\:5-4i\:de\:3+7i,\\\displaystyle\sf subtraindo\:partes \: real\:e\:imagin\acute{a} rias\\\displaystyle\sf correspondentes.\\\\\displaystyle\sf 3-5+(7-(-4))i\\ \\\displaystyle\sf Subtraia\:5\:de\:3. \:Subtraia-4\:de\:7. \\\\\displaystyle\sf-2+11i \sf\end{array}}$