Tìm nguyên hàm của$f(x)=\frac{-3sin(3x)+2cos(3x)}{5sin(3x)-cos(3x)}$

$A. -\frac{17}{26}x+\frac{7}{78}ln\left | 5sin(3x)-cos(3x) \right |+C$

$B. -\frac{17}{26}x-\frac{7}{78}ln\left | 5sin(3x)-cos(3x) \right |+C$

$C. \frac{17}{26}x+\frac{7}{78}ln\left | 5sin(3x)-cos(3x) \right |+C$

$D. \frac{17}{26}x-\frac{7}{78}ln\left | 5sin(3x)-cos(3x) \right |+C$

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