Let \( f(x)=a x^{17}+b \sin x \sin 2 x \cdot \sin 3 x+c x^{2} \operatorname{sgn}(\sin x)+d \) \(... VIDEO
Let \( f(x)=a x^{17}+b \sin x \sin 2 x \cdot \sin 3 x+c x^{2} \operatorname{sgn}(\sin x)+d \) \( \log \left(x+\sqrt{1+x^{2}}\right)+x(|x+1|-|x-1|)\left(\frac{e^{x}-e^{-x}}{e^{x}+e^{-x}}\right) \)https://bit.ly/YTAI_PWAP https://www.pw.live
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