Merge pull request #1755 from maths/KZerva-patch-3

Update 2-6-1-7-Write-eq-of-cirlce.xml

Author: sangwinc

samplequestions/stacklibrary/HELM/Course_quiz_2_6-the-circle/top/Default-for-2-6/2-6-1-7-Write-eq-of-cirlce.xml

@@ -47,7 +47,7 @@
       <text>ordergreat (x,y);
 ta1: x^2+y^2 = 2^2;
 ta2: (x-1)^2+y^2=1^2;
-ta3: (x-3)^3+(y-3)^2=3^2;
+ta3: (x-3)^2+(y-3)^2=3^2;
 ta4: (x+1)^2+(y+1)^2=1^2;</text>
     </questionvariables>
     <specificfeedback format="html">