tyle="text-align:center;">&#128522;</td>
      <td style="text-align:left;">> see $a = b + c$ 
> $c^2=a^2+b^2$ (2) 
> $c^2=a^2+b^2$ </td>
      <td style="text-align:left;"><blockquote>
<p>see <eq><span class="katex"><span class="katex-mathml"><math><semantics><mrow><mi>a</mi><mo>=</mo><mi>b</mi><mo>+</mo><mi>c</mi></mrow><annotation encoding="application/x-tex">a = b + c</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="strut" style="height:0.69444em;"></span><s