Question

Passe para a forma algébrica:
a) Z= 3( cos /4 + i sen /4)

Answer 1

Explicação passo-a-passo:

$\sf z=3\cdot\left(cos~\dfrac{\pi}{4}+i\cdot sen~\dfrac{\pi}{4}\right)$

$\sf z=3\cdot\left(\dfrac{\sqrt{2}}{2}+i\cdot\dfrac{\sqrt{2}}{2}\right)$

$\sf z=\dfrac{3\sqrt{2}}{2}+\dfrac{3\sqrt{2}}{2}\cdot i$