Added 13.2.20 13.4.18

astrosander edited
revision #441 parent #438 GitHub bb59f9f ← older newer →
@@ -202,7 +202,7 @@
<h3>
− Ответ: $a = g tg α;$ $m = m_0 \, sin α/(1 − sin α)^2$
+ Ответ: $a = g \, tg α;$ $m = m_0 \, sin α/(1 − sin α)^2$
</h3>
</div>
unchanged lines 53