$$i^{2}+\frac{1}{2}+\frac{3}{4}i$$
$-\frac{1}{2}+\frac{3}{4}i=-0.5+0.75i$
$$-1+\frac{1}{2}+\frac{3}{4}i$$
$$-\frac{1}{2}+\frac{3}{4}i$$
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$-\frac{1}{2} = -0.5$
$$Re(-1+\frac{1}{2}+\frac{3}{4}i)$$
$$Re(-\frac{1}{2}+\frac{3}{4}i)$$
$$-\frac{1}{2}$$
