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            <p><span ><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.365108em;vertical-align:-0.52em;"></span><span class="mord coloredeq eqd" style=""><span class="mord" style=""><span class="mord mathnormal coloredeq eqj" style="">A</span></span><span class="mopen" style="">(</span><span cl