Calculus
e4t25(3cos(3t)+4sin(3t))+C{\(\displaystyle\]\frac{e^{4t}\)}{25}\(\left\)(3\(\cos\)(3t)+4\(\sin\)(3t)\(\right\))+C}
e4t7(4cos(3t)+3sin(3t))+C{\(\displaystyle\]\frac{e^{4t}\)}{7}\(\left\)(4\(\cos\)(3t)+3\(\sin\)(3t)\(\right\))+C}
e7t25(4cos(3t)+3sin(3t))+C{\(\displaystyle\]\frac{e^{7t}\)}{25}\(\left\)(4\(\cos\)(3t)+3\(\sin\)(3t)\(\right\))+C}
e4t25(4cos(3t)+3sin(3t))+C\(\displaystyle\]\frac{e^{4t}\)}{25}\(\left\)(4\(\cos\)(3t)+3\(\sin\)(3t)\(\right\))+C