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updated 6.7.4 to make the location of the typical rectangle more clear. #902

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Merged
siwelwerd merged 1 commit into from
Dec 18, 2025
Merged

updated 6.7.4 to make the location of the typical rectangle more clear. #902

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6 changes: 3 additions & 3 deletions source/calculus/source/06-AI/07.ptx
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Original file line number Diff line number Diff line change
Expand Up @@ -165,13 +165,13 @@
<task>
<statement>
<p>
Draw and label a horizontal rectangle across the middle of the plate of width <m> l_i</m>
and height <m> x_i</m>. What is the area <m>A_i</m> of this rectangle?
Draw and label a thin, horizontal rectangle across the middle of the plate of width <m> l_i</m>
and height <m> \Delta x_i</m>. What is the area <m>A_i</m> of this rectangle?
</p>
</statement>
<answer>
<p>
<m>A_i=l_ix_i</m>
<m>A_i=l_i\Delta x_i</m>
</p>
</answer>
</task>
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