# How do you write the trigonometric form in complex form 3.75(cos((pi)/4)+isin((pi)/4)))?

$3.75 \left(\cos \left(\setminus \frac{\pi}{4}\right) + i \sin \left(\frac{\pi}{4}\right)\right) = 3.75 \left(\setminus \frac{\sqrt{2}}{2} + i \setminus \frac{\sqrt{2}}{2}\right)$
$= 1.875 \setminus \sqrt{2} + 1.875 \sqrt{2} \setminus i$