Answer 1

\[g\left( x \right) = 3 \sin \left( x - \frac{\pi}{4} \right), 0 \leq x \leq \frac{5\pi}{4}\]

x	\[\frac{\pi}{4}\]	\[\frac{5\pi}{4}\]
\[g\left( x \right) = 3 \sin \left( x - \frac{\pi}{4} \right)\]	0	0