مشتق تابع $f\left( x \right)=-\frac{3}{x}$ و $g\left( x \right)=\frac{2}{x}$ کدام است؟
1 )
${f}'\left( x \right)=-\frac{3}{{{x}^{2}}}$ و ${g}'\left( x \right)=\frac{2}{{{x}^{2}}}$
${f}'\left( x \right)=\frac{3}{{{x}^{2}}}$ و ${g}'\left( x \right)=-\frac{2}{{{x}^{2}}}$
3 )
${f}'\left( x \right)=\frac{1}{{{x}^{2}}}$ و ${g}'\left( x \right)=\frac{-1}{{{x}^{2}}}$
4 )
${f}'\left( x \right)=-\frac{3}{{{x}^{3}}}$ و ${g}'\left( x \right)=\frac{2}{{{x}^{2}}}$