Nilai dari adalah.... Question from @FatiemQarm19

izharulhaq78 $\displaystyle \lim_{x\to2}\frac{3-\sqrt{4x+1}}{x-2}\\\lim_{x\to2}\frac{3-\sqrt{4x+1}}{x-2}\times\frac{3+\sqrt{4x+1}}{3+\sqrt{4x+1}}\\\lim_{x\to2}\frac{3^2-(\sqrt{4x+1})^2}{(x-2)(3+\sqrt{4x+1})}\\\lim_{x\to2}\frac{9-(4x+1)}{(x-2)(3+\sqrt{4x+1})}\\\lim_{x\to2}\frac{9-4x-1}{(x-2)(3+\sqrt{4x+1})}\\\lim_{x\to2}\frac{8-4x}{(x-2)(3+\sqrt{4x+1})}\\\lim_{x\to2}\frac{-4(x-2)}{(x-2)(3+\sqrt{4x+1})}\\\lim_{x\to2}\frac{-4}{3+\sqrt{4x+1}}\\\\\frac{-4}{3+\sqrt{4(2)+1}}\\\frac{-4}{3+\sqrt{8+1}}\\\frac{-4}{3+\sqrt{9}}$
$\displaystyle \frac{-4}{3+3}\\\frac{-4}{6}\\\boxed{\boxed{-\frac{2}{3}}}$

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MicoArrafi $$\begin{align} &\Rightarrow\ \lim_{x\to2}\ \frac{3-\sqrt{4x+1}}{x-2}\\&=\ \lim_{x\to2}\ \frac{3-\sqrt{4x+1}}{x-2}\times\frac{3+\sqrt{4x+1}}{3+\sqrt{4x+1}}\\&=\ \lim_{x\to2}\ \frac{9-(4x+1)}{(x-2)(3+\sqrt{4x+1})}\\&=\ \lim_{x\to2}\ \frac{8-4x}{(x-2)(3+\sqrt{4x+1})}\\&=\ \lim_{x\to2}\ \frac{-4(x-2)}{(x-2)(3+\sqrt{4x+1})}\\&=\ \lim_{x\to2}\ \frac{-4}{3+\sqrt{4x+1}}\\&=\ \frac{-4}{3+\sqrt{4\times2+1}}\\&=\ \frac{-4}{3+\sqrt9}\\&=\ \frac{-4}{3+3}\\&=\ -\frac{4}{6}\\&=\ \boxed{\boxed{-\frac{2}{3}}} \end$

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FatiemQarm19 terima kasih

Jika fungsi f:R⇒R dan fungsi g:R⇒R masing masing ditentukan dengan rumus f(x)= dan g()=4-2, maka (fog)-1 (x) adalah

Turunan dari fungsi pangkat f(x)= adalah

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Apakah pengaruh keluarga terhadap perkembangan psikologis remaja

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