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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
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<body>
<math display="block" xmlns="http://www.w3.org/1998/Math/MathML">
<mrow>
<msubsup>
<mo>∫</mo>
<mi>a</mi>
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<mo stretchy="false">(</mo>
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<mo stretchy="false">)</mo>
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<mspace width="0.167em" />
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<mo>=</mo>
<msubsup>
<mo>∫</mo>
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<mo stretchy="false">(</mo>
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<mo stretchy="false">)</mo>
<mo stretchy="false">(</mo>
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<mo>−</mo>
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<mi>d</mi>
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</math>
</body>
</html>
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