Automated update from private repo

Author: actions-user

source/psets/ps03.ptx

@@ -1,56 +1,78 @@
 <?xml version='1.0' encoding='UTF-8'?>
-<pretext xmlns:ns0="http://www.w3.org/2001/XInclude">
+<pretext>
   <article>
     <section xml:id="ps03-section">
       <title>Problem Set 3</title>
       <subtitle>Trigonometric Substitution and Partial Fractions </subtitle>
-      <ns0:include href="ps01.ptx" xpointer="xpointer(//section[1]/introduction)" set-xml-id="intro-ps03" />
+      <introduction>
+        <p>
+          This problem set consists not only of problems similar to what you've seen, but
+          also of unique problems you may not have seen before.
+          The purpose is for you to apply the concepts you've previously
+          learned to new, unfamiliar, and usually more interesting situations.
+          In some cases, problems connect ideas from multiple learning objectives.
+        </p>
+
+        <p> Write full, clear solutions to the problems below. Although the final answer is
+          important, being able to convey you understand the underlying concepts is more important.
+          So show your work and explain your steps. Write complete sentences in English to connect
+          your mathematical statements. Do not use the three-dots notation (∴ or ∵) when you mean <q>
+          therefore</q> or <q>because</q>. Do not use an arrow (→) when you mean equals (=) or <q>this
+          implies</q> or <q>and now the next step is…</q>. Use the worked examples in the textbook, or
+          on solution sets to worksheets or previous problem sets, as a guide for how to write your
+          solutions. </p>
+
+        <p>Written work should be neat and legible.
+          Other than being written in longhand, your work should be as clean as something you would
+          turn in for one of your writing classes.
+          Write in linear order from left to right and top to bottom.
+          Leave ample space for graders to write their comments.
+          (Do not upload the exercise sheet with your answers written in the margins.)
+          Setting aside one page per exercise is a good rule of thumb.
+        </p>
+
+        <p>
+          Prepare a single PDF and submit it to Gradescope.
+          Mark the page of each exercise when you upload your pset.
+          Make sure each page is in the proper orientation.
+        </p>
+
+      </introduction>
       <exercises>
         <exercise xml:id="ex-trig-sub-definite-x-squared-plus-four">
           <statement>
-            <p>
-              Evaluate the definite integral <me>\int_1^3 \frac{dx}{x^2\sqrt{x^2+4}}</me>. Explain your steps and justify your choices for trigonometric substitution.
-            </p>
+            <p> Evaluate the definite integral <me>\int_1^3 \frac{dx}{x^2\sqrt{x^2+4}}</me>. Explain
+              your steps and justify your choices for trigonometric substitution. </p>
           </statement>
           </exercise>
 
         <exercise xml:id="ex-trig-sub-completing-the-square">
           <statement>
-            <p>
-              Evaluate the indefinite integral <me>\int \frac{x^2}{\sqrt{4x-x^2}} \,dx</me>.
-            </p>
+            <p> Evaluate the indefinite integral <me>\int \frac{x^2}{\sqrt{4x-x^2}} \,dx</me>. </p>
           </statement>
           </exercise>
 
         <exercise xml:id="ex-partial-fractions-long-division">
           <statement>
-            <p>
-              Evaluate the indefinite integral <me>\int \frac{x^3-4x-10}{x^2-x-6} \,dx</me>.
-            </p>
+            <p> Evaluate the indefinite integral <me>\int \frac{x^3-4x-10}{x^2-x-6} \,dx</me>. </p>
           </statement>
           </exercise>
-        
-        <exercise xml:id="ex-partial-fractions-repeated-quadratic">
+
+        <exercise xml:id="ex-trig-sub-one-over-x-sqrt">
           <statement>
-            <p>
-              Evaluate the indefinite integral <me>\int \frac{x}{(x-1)^2(x^2+1)} \,dx</me>.
-            </p>
+            <p> Evaluate the indefinite integral <me>\int \frac{1}{x\sqrt{4-x^2}} \,dx</me>. </p>
           </statement>
           </exercise>
-
-        <exercise xml:id="ex-trig-sub-one-over-x-sqrt">
+        <exercise xml:id="ex-partial-fractions-repeated-quadratic">
           <statement>
-            <p>
-              Evaluate the indefinite integral <me>\int \frac{1}{x\sqrt{4-x^2}} \,dx</me>.
-            </p>
+            <p> Evaluate the definite integral <me>\int_{0}^{1/\sqrt{3}} \frac{x}{(x-1)^2(x^2+1)}
+              \,dx</me>. </p>
           </statement>
           </exercise>
 
         <exercise xml:id="ex-partial-fractions-u-sub">
           <statement>
-            <p>
-              Evaluate the indefinite integral <me>\int \frac{1}{e^{2x}-e^x-2} \,dx</me>.
-            </p>
+            <p> Evaluate the indefinite integral <me>\int \frac{1}{e^{2x}-e^x-2} \,dx</me>. </p>
           </statement>
           </exercise>
       </exercises>