Answer
With no reflection, $$B=0,$$ and $$\mathrm{SWR}=\frac{A+B}{A-B}=\frac{A}{A}=1$$
Work Step by Step
With no reflection, $$B=0,$$ and $$\mathrm{SWR}=\frac{A+B}{A-B}=\frac{A}{A}=1$$
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