Category: Relation and Functions

Question Number 124066 by Bird last updated on 30/Nov/20 $$letf\left(x\right)=arctan\left(\frac{2}{x}\right)$$$$calculate{f}^{\left(n\right)}\left(x\right)and{f}^{\left(n\right)}\left(1\right)$$$$find{f}^{\left(7\right)}\left(\frac{1}{7}\right)$$ Answered by Olaf last updated on…

Question Number 58354 by maxmathsup by imad last updated on 21/Apr/19 $$let{U}_n=\frac{1^2+2^2+3^2+\dots .+n^2}{1^4+2^4+3^4+\dots .+n^4}$$$$\left.\mathrm{1}\right){find}\:{lim}_{{n}\rightarrow+\infty} {U}_{{n}} \…

Question Number 123675 by mathmax by abdo last updated on 27/Nov/20 $$\mathrm{calculste}{\lim }_{\mathrm{x}\to 0}\frac{\arctan ({\mathrm{x}}^2+\mathrm{x}+1)-\arctan (\mathrm{x}+1)}{{\mathrm{x}}^3}$$ Answered by benjo_mathlover last updated on 27/Nov/20 $$\underset{{x}\rightarrow\mathrm{0}}…

Question Number 58103 by smiak8742 last updated on 17/Apr/19 $$f\left(x\right)=-x^6+3x^4+4x^{2}findthezeros$$ Answered by MJS last updated on 17/Apr/19 $${x}^{\mathrm{6}} −\mathrm{3}{x}^{\mathrm{4}} −\mathrm{4}{x}^{\mathrm{2}}…

Question Number 58079 by smiak8742 last updated on 17/Apr/19 $$f\left(x\right)=2^3+x^2-5x+2;x+2$$ Answered by $@ty@m last updated on 17/Apr/19 Terms of Service Privacy…