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<blockquote style="position: relative; padding-left: 55px;"><section><a href="https://toot.fedilab.app/users/apps/statuses/109699903872422515">Fedilab Apps (apps@toot.fedilab.app)'s status on Tuesday, 17-Jan-2023 02:56:00 JST</a><a href="https://toot.fedilab.app/@apps" title="apps@toot.fedilab.app"><img src="https://gnusocial.jp/avatar/9286-48-20220907190205.webp" width="48" height="48" alt="Fedilab Apps" style="position: absolute; left: 0; top: 0;">Fedilab Apps</a><div><a href="https://mastodon.online/@rother_stuebs/109699889038145690" rel="in-reply-to">in reply to</a><ul><li></ul></div></section><article><p><a href="https://mastodon.online/@rother_stuebs">@rother_stuebs</a> \(\cos (2\theta) = \cos^2 \theta - \sin^2 \theta\) ?</p></article><footer><a rel="bookmark" href="https://gnusocial.jp/conversation/1050147#notice-2318931">In conversation</a><time datetime="2023-01-17T02:56:00+09:00" title="Tuesday, 17-Jan-2023 02:56:00 JST">Tuesday, 17-Jan-2023 02:56:00 JST</time> <span>from <span><a href="https://gnusocial.jp/notice/2318931" rel="external" title="Sent from gnusocial.jp via ActivityPub">gnusocial.jp</a></span></span><a href="https://gnusocial.jp/notice/2318931">permalink</a></footer></blockquote>
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Fedilab Apps (apps@toot.fedilab.app)'s status on Tuesday, 17-Jan-2023 02:56:00 JST
Fedilab Apps
in reply to
Stefan Rother-Stübs
@rother_stuebs
\(\cos (2\theta) = \cos^2 \theta - \sin^2 \theta\) ?