gabeverizon
Use a half-angle formula to simplify: (sin4 theta)/(1+cos4theta).
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gabeverizon
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\[\sin4\theta/1+\cos4\]
zepdrix
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oh ok :) hmm
gabeverizon
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The bottom half should read: (1+cos 4 theta)
zepdrix
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Ok so this appears to be the `Tangent Half-Angle Identity`.
\[\large \tan \frac{x}{2}=\frac{\sin x}{1+\cos x}\]
zepdrix
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So we appears to have something that looks like the `right` side of this identity, yes?
zepdrix
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appear*
gabeverizon
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right, yes.
zepdrix
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If it helps, maybe make a substitution.
Let \(\large x=4\theta\)
We know that this will simplify down to \(\large \tan \dfrac{x}{2}\).
So from here, \(\large x=4\theta\), solve for x/2! :)
zepdrix
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is that confusing? :c
gabeverizon
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Ok, never mind that post, I got it. Thanks!!
zepdrix
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k c: