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Category: Differentiation

f-x-2-1-x-2-x-2-f-x-

Question Number 11151 by suci last updated on 14/Mar/17 $${f}\left({x}\right)=\mathrm{2}^{\frac{\mathrm{1}−{x}}{\mathrm{2}+{x}^{\mathrm{2}} }} \\ $$$${f}'\left({x}\right)=…??? \\ $$ Answered by ajfour last updated on 14/Mar/17 $$=\:\mathrm{2}^{\frac{\mathrm{1}−{x}}{\mathrm{2}+{x}^{\mathrm{2}} }} \left(\mathrm{ln}\:\mathrm{2}\right)\left[\frac{{x}^{\mathrm{2}}…

f-x-x-2-x-1-sin2x-f-x-

Question Number 11150 by suci last updated on 14/Mar/17 $${f}\left({x}\right)=\left({x}^{\mathrm{2}} +{x}+\mathrm{1}\right)^{{sin}\mathrm{2}{x}} \\ $$$${f}'\left({x}\right)=…??? \\ $$ Answered by ajfour last updated on 14/Mar/17 $$=\:\left({x}^{\mathrm{2}} +{x}+\mathrm{1}\right)^{\mathrm{sin}\:\mathrm{2}{x}} \:\left\{\left(\mathrm{2cos}\:\mathrm{2}{x}\right)\mathrm{ln}\:\left({x}^{\mathrm{2}}…

y-x-2-2-x-1-3-2-Let-p-x-1-y-p-1-2p-3-2-Is-it-true-that-dy-dx-dy-dp-

Question Number 10956 by Joel576 last updated on 04/Mar/17 $${y}\:=\:\frac{{x}\:−\:\mathrm{2}}{\mathrm{2}\left({x}\:−\:\mathrm{1}\right)^{\mathrm{3}/\mathrm{2}} } \\ $$$$\mathrm{Let}\:\:{p}\:=\:{x}\:−\:\mathrm{1} \\ $$$$\Rightarrow\:{y}\:=\:\frac{{p}\:−\:\mathrm{1}}{\mathrm{2}{p}^{\mathrm{3}/\mathrm{2}} } \\ $$$$ \\ $$$$\mathrm{Is}\:\mathrm{it}\:\mathrm{true}\:\mathrm{that}\:\:\:\frac{{dy}}{{dx}}\:\:\:=\:\:\frac{{dy}}{{dp}}\:\:? \\ $$ Commented by FilupS…