Hi:
I'm wondering if I'm missing something. SAGE can show that $\sin(x)^3
= \frac{3\sin(x) - \sin(3x)}{4}$
by the command
sage: y = sin(x)^3
sage: maxima(y).trigreduce()
(3*sin(x)-sin(3*x))/4
Is there any other way of doing this? The explicit call to maxima is
what I'm trying to avoid.
- David Joyner
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