Answer
$m=0.930$
Work Step by Step
We are given that we have solutions at $\alpha=(m+1/2)\pi$.
Isolating the equation for $m$, we obtain:
$m=\alpha/\pi-1/2$
Now we can use the alpha found in part 17d ($\alpha=4.4934$) to find the associated $m$ value.
$m=4.4934/\pi-1/2$
$m=0.930$
