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- #1

Suppose we have \(\displaystyle \sqrt{8}sin\theta\) and we plug in \(\displaystyle 2\) for \(\displaystyle \theta\).

\(\displaystyle \sqrt{8}sin(2).\)

how are they then coming to the conclusion of \(\displaystyle \sin\theta = \frac{1}{\sqrt{2}}\)

That makes NO sense! We just plugged a \(\displaystyle 2\) in for \(\displaystyle \theta\)! Where does the extra \(\displaystyle \theta \) come from?!