diff --git a/course2/sem3/theory/assets/1.svg b/course2/sem3/theory/assets/1.svg
new file mode 100644
index 0000000..1771672
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diff --git a/course2/sem3/theory/qa.pdf b/course2/sem3/theory/qa.pdf
index db7ff70..499fad6 100644
Binary files a/course2/sem3/theory/qa.pdf and b/course2/sem3/theory/qa.pdf differ
diff --git a/course2/sem3/theory/qa.typ b/course2/sem3/theory/qa.typ
index 06942cc..64b4af4 100644
--- a/course2/sem3/theory/qa.typ
+++ b/course2/sem3/theory/qa.typ
@@ -63,7 +63,7 @@ $
  
 *A*: *Поток вектора* $arrow(E)$. Для удобства представим, что густота силовых линий равна $E$. Тогда число линий, пронизывающих площадку $d S$ (см. рис.) с нормалью $arrow(n)$ равна $E d S cos alpha$. Это число равно потоку $d Phi$ вектора $arrow(E)$ сквозь площадку $d S$.
 
-#align(center)[#image("assets/1.png")]
+#align(center)[#image("assets/1.svg")]
 
 Если ввести вектор ж