
</p>

<!-- LATEX \sin(a+b)=\sin a \cos b + \cos a \sin b -->

<img class="indented" src="pix/fmeq18.png" alt="sin split"><br>

<!-- LATEX \sin(\omega_{c}t+B\sin \omega_{m}t) = \sin \omega_{c}t \cos(B \sin \omega_{m}t) + \cos \omega_{c}t \sin(B \sin \omega_{m}t) -->

<img class="indented" src="pix/fmeq19.png" alt="sin split">

<p>and using our previous formulas for the expansion of the cos(sin) and sin(sin) terms, with the 
identity:
</p>

<!-- LATEX \sin a \cos b = \frac{1}{2} (\sin (a-b) + \sin (a+b)) -->