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機械学習のための数学(微分基礎問題脳筋トレーニング)

Last updated at Posted at 2019-12-11

頭で覚えるよりも体で覚える人のための微分問題!!
微分を知らなかった人が自分で問題を作って、解く特訓結果集!!

#指数の公式使えば解ける系

001
問題: $ f(x)=(3x+5)(2x-1)$
解答: $ f'(x)=12x+7$

002
問題: $ f(x)=x^{4}+x^{3}+x^{2}+x+1$
解答: $ f'(x)=4x^{3}+3x^{2}+2x+1$

003
問題: $ f(x)=-\frac{3}{2}x^{4}+\frac{1}{3}x^{3}-5x$
解答: $ f'(x)=-6x^{3}+x^{2}-5$

004
問題: $ f(x)=(x^{3}-1)^{2}$
解答: $ f'(x)=6x^{2}(x^{3}-1)$

005
問題: $ f(x)=\frac{\sqrt[3]{x^{2}}}x$
解答: $ f'(x)=-\frac{1}{\sqrt[3]{x^{4}}}$

006
問題: $ f(x)=3x^{2}-4x^{3}$
解答: $ f'(x)=6x-12x^{2}$

007
問題: $ f(x)=\frac{3}{2}x^{2}-\frac{4}{5}x^{3}$
解答: $ f'(x)=3x-\frac{12}{5}x^{2}$

008
問題: $ f(x)=\frac{9}{\sqrt[4]{7x^{3}}}$
解答: $ f'(x)=-\frac{27}{4\sqrt[4]{7x^{7}}}$

009
問題: $ f(x)=-\frac{1}{x^{2}}$
解答: $ f'(x)=\frac{2}{x^{3}}$

010
問題: $ f(x)=\frac{1}{\sqrt[5]{x^{4}}}$
解答: $ f'(x)=-\frac{4}{5\sqrt[5]{x^{9}}}$

011
問題: $ f(x)=-5x^{5}+4x^{4}-3x^{3}+2x^{2}-x$
解答: $ f'(x)=-25x^{4}+16x^{3}-9x^{2}+4x-1$

012
問題: $ f(x)=\frac{1}{x^{10}}$
解答: $ f'(x)=-\frac{10}{x^{11}}$

013
問題: $ f(x)=\frac{x^{3}-2x^{2}+3x-4}{x}$
解答: $ f'(x)=2x^{2}-2+\frac{4}{x^{2}}$

014
問題: $ f(x)=(x^{2}-3x+4)(x^{2}-3x-1)$
解答: $ f'(x)=4x^{3}-18x^{2}+24x-9$

015
問題: $ f(x)=\frac{1}{\sqrt{x^{3}}}$
解答: $ f'(x)=-\frac{3}{2\sqrt{x^{5}}}$

016
問題: $ f(x)=3x^{3}+2x^{2}+x+9$
解答: $ f'(x)=9x^{2}+4x+1$

017
問題: $ f(x)=\frac{1}{\sqrt[4]{x^{8}}}$
解答: $ f'(x)=-\frac{2}{x^{3}}$

018
問題: $ f(y)=-xyz$
解答: $ f'(y)=-xz$

019
問題: $ f(x,y)=x^{2}y-xy^{2}$
解答: $ f_x(x,y)=2yx-y^{2}$
解答: $ f_y(x,y)=x^{2}-2xy$

020
問題: $ f(x,y)=\frac{y\sqrt{x}}{x\sqrt{y}}$
解答: $ f_x(x,y)=-\frac{\sqrt{y}}{2\sqrt{x^{3}}}$
解答: $ f_y(x,y)=\frac{1}{2\sqrt{xy}}$

021
問題: $ f(x)=x^{3}-2x^{2}+5x-5$
解答: $ f'(x)=3x^{2}-4x+5$

022
問題: $ f(x)=\sqrt{x^{3}}$
解答: $ f'(x)=\frac{3}{2}\sqrt{x}$

023
問題: $ f(x)=(x^{3})^{-4}$
解答: $ f'(x)=-\frac{12}{x^{13}}$

024
問題: $ f(x,y)=x^{2}-3xy+2y^{2}$
解答: $ f_x(x,y)=2x-3y$
解答: $ f_y(x,y)=-3x+4y$

025
問題: $ f(x,y)=x-2y$
解答: $ f_x(x,y)=1$
解答: $ f_y(x,y)=-2$

026
問題: $ f(x,y)=x^{2}y+3xy^{5}+x^{3}$
解答: $ f_x(x,y)=2xy+3y^{5}+3x^{2}$
解答: $ f_y(x,y)=x^{2}+15xy^{4}$

027
問題: $ f(x)=\frac{1}{2}x^{3}-\frac{3}{4}x^{4}$
解答: $ f'(x)=\frac{3}{2}x^{2}-3x^{3}$

028
問題: $ f(x)=\frac{1}{\sqrt[8]{x^{3}}}$
解答: $ f'(x)=-\frac{3}{8\sqrt[8]{x^{11}}}$

029
問題: $ f(x)=\frac{1}{\sqrt[9]{x^{15}}}$
解答: $ f'(x)=-\frac{5}{3\sqrt[3]{x^{8}}}$

030
問題: $ f(x,y)=x^{3}y-xy^{3}+x^{2}$
解答: $ f_x(x,y)=3x^{2}y-y^{3}+2x$
解答: $ f_y(x,y)=x^{3}-3xy^{2}$

031
問題: $ f(x,y)=2x^{2}y-3xy^{4}$
解答: $ f_x(x,y)=4xy-3y^{4}$
解答: $ f_y(x,y)=2x^{2}-12xy^{3}$

032
問題: $ f(x)=\sqrt[3]{x^{2}}$
解答: $ f'(x)=\frac{2}{3\sqrt[3]{x}}$

033
問題: $ f(y)=\frac{x}{y^{2}}$
解答: $ f'(y)=-2\frac{x}{y^{3}}$

034
問題: $ f(y)=xy^{\frac{1}{2}}$
解答: $ f'(y)=\frac{x}{2\sqrt{y}}$

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