Ответ:
Объяснение:
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[tex]y=\frac{x^2+1}{2x+3} \ \ \ \ x_0=-2.\\y'(x_0)=(\frac{x^2+1}{2x+3})'=\frac{(x^2+1)'*(2x+3)-(x^2+1)*(2x+3)'}{(2x+3)^2}=\frac{2x*(2x+3)-(x^2+1)*2}{(2x+3)^2}=[/tex]
[tex]=\frac{4x^2+6x-2x^2-2}{(2x+3)^2}=\frac{2x^2+6x-2}{(2x+3)^2} .[/tex]
[tex]y'(-2)=\frac{2*(-2)^2+6*(-2)-2}{(2*(-2)+3)^2}=\frac{2*4-12-2}{(-4+3)^2}=\frac{8-12-2}{(-1)^2} =\frac{-6}{1} =-6.[/tex]
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Ответ:
Объяснение:
!!!!!!!!!!!!!!!!!!!!!!!!!!!
Объяснение:
[tex]y=\frac{x^2+1}{2x+3} \ \ \ \ x_0=-2.\\y'(x_0)=(\frac{x^2+1}{2x+3})'=\frac{(x^2+1)'*(2x+3)-(x^2+1)*(2x+3)'}{(2x+3)^2}=\frac{2x*(2x+3)-(x^2+1)*2}{(2x+3)^2}=[/tex]
[tex]=\frac{4x^2+6x-2x^2-2}{(2x+3)^2}=\frac{2x^2+6x-2}{(2x+3)^2} .[/tex]
[tex]y'(-2)=\frac{2*(-2)^2+6*(-2)-2}{(2*(-2)+3)^2}=\frac{2*4-12-2}{(-4+3)^2}=\frac{8-12-2}{(-1)^2} =\frac{-6}{1} =-6.[/tex]