## Algebra and Trigonometry 10th Edition

$\frac{5}{2}+2i$
Add the complex numbers and divide the result by 2: $\frac{(1+i)+(4+3i)}{2}=\frac{(1+4)+(1+3)i}{2}=\frac{5+4i}{2}=\frac{5}{2}+2i$