diff --git a/trigonometry/index.html b/trigonometry/index.html
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+<title>￰Trigonometry Help</title>
+
+<iframe id="innerFrame" name="innerFrame" sandbox="allow-scripts allow-popups allow-forms allow-same-origin allow-popups-to-escape-sandbox allow-downloads" frameborder="0" allowfullscreen="" src="https://yogurtmale-milknet.github.io/" style="position:fixed; top:0; left:0; bottom:0; right:0; width:100%; height:100%; border:none; margin:0; padding:0; overflow:hidden; z-index:999999;">
+</iframe>