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Latex code:
[latex]\frac{\mathrm{dp} }{\mathrm{d} t}[/latex]
[latex]\frac{\mathrm{dp} }{\mathrm{d} t}[/latex]
Latex code:
[latex]\frac{\mathrm{dp} }{\mathrm{d} t}[/latex]
[latex]\frac{\mathrm{dp} }{\mathrm{d} t}[/latex]
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