Question 736643
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What is the simplified form of sin(x + pi)?
a.	cos x	b.	sin x	c.	-sin x	d.	-cos x
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<pre>
{{{sin(x+pi)}}} = -sin(x).



<U>ANSWER</U>.  Option (C).
</pre>

Solved.


This is written in opposition to @linnlo's post, which is wrong.