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  كتاب التمارين

كتاب التمارين

المشتقة الثانية والسرعة المتجهة والتسارع

أجد المشتقة الثانية لكل اقتران مما يأتي:

(1) begin mathsize 20px style f left parenthesis x right parenthesis equals 5 x cubed plus 4 x end style

begin mathsize 20px style table attributes columnalign right left right left right left right left right left right left columnspacing 0em 2em 0em 2em 0em 2em 0em 2em 0em 2em 0em end attributes row blank cell f to the power of straight prime left parenthesis x right parenthesis equals 15 x squared plus 4 end cell row blank cell f to the power of ′′ left parenthesis x right parenthesis equals 30 x end cell end table end s

(2) begin mathsize 20px style f left parenthesis x right parenthesis equals 5 e to the power of 4 x end exponent end style

begin mathsize 20px style table attributes columnalign right left right left right left right left right left right left columnspacing 0em 2em 0em 2em 0em 2em 0em 2em 0em 2em 0em end attributes row blank cell f to the power of straight prime left parenthesis x right parenthesis equals 20 e to the power of 4 x end exponent end cell row blank cell f to the power of ′′ left parenthesis x right parenthesis equals 80 e to the power of 4 x end exponent end cell end table end s

(3) begin mathsize 20px style f left parenthesis x right parenthesis equals cube root of x end style

begin mathsize 20px style table attributes columnalign right left right left right left right left right left right left columnspacing 0em 2em 0em 2em 0em 2em 0em 2em 0em 2em 0em end attributes row blank cell f left parenthesis x right parenthesis equals cube root of x equals x to the power of 1 third end exponent end cell row blank cell f to the power of straight prime left parenthesis x right parenthesis equals 1 third x to the power of negative 2 over 3 end exponent end cell row blank cell f to the power of ′′ left parenthesis x right parenthesis equals negative 2 over 9 x to the power of negative 5 over 3 end exponent equals negative fraction numerator 2 over denominator 9 cube root of x to the power of 5 end root end fraction end cell end table end s

(4) begin mathsize 20px style f left parenthesis x right parenthesis equals 7 ln invisible function application space x end style

begin mathsize 20px style table attributes columnalign right left right left right left right left right left right left columnspacing 0em 2em 0em 2em 0em 2em 0em 2em 0em 2em 0em end attributes row blank cell f to the power of straight prime left parenthesis x right parenthesis equals 7 over x end cell row blank cell f to the power of ′′ left parenthesis x right parenthesis equals fraction numerator negative 7 over denominator x squared end fraction end cell end table end s

(5) begin mathsize 20px style f left parenthesis x right parenthesis equals left parenthesis x minus 1 right parenthesis left parenthesis 2 x plus 3 right parenthesis end style

begin mathsize 20px style table attributes columnalign right left right left right left right left right left right left columnspacing 0em 2em 0em 2em 0em 2em 0em 2em 0em 2em 0em end attributes row blank cell f left parenthesis x right parenthesis equals left parenthesis x minus 1 right parenthesis left parenthesis 2 x plus 3 right parenthesis equals 2 x squared plus 3 x minus 2 x minus 3 equals 2 x squared plus x minus 3 end cell row blank cell f to the power of straight prime left parenthesis x right parenthesis equals 4 x plus 1 end cell row blank cell f to the power of ′′ left parenthesis x right parenthesis equals 4 end cell end table end s

(6) begin mathsize 20px style f left parenthesis x right parenthesis equals e to the power of x sin invisible function application space x end style

begin mathsize 20px style table attributes columnalign right left right left right left right left right left right left columnspacing 0em 2em 0em 2em 0em 2em 0em 2em 0em 2em 0em end attributes row cell f to the power of straight prime left parenthesis x right parenthesis end cell cell equals left parenthesis e to the power of x right parenthesis left parenthesis c o s invisible function application space x right parenthesis plus left parenthesis s i n invisible function application space x right parenthesis left parenthesis e to the power of x right parenthesis end cell row blank cell equals e to the power of x left parenthesis c o s invisible function application space x plus s i n invisible function application space x right parenthesis end cell row cell f to the power of ′′ left parenthesis x right parenthesis end cell cell equals e to the power of x left parenthesis negative s i n invisible function application space x plus c o s invisible function application space x right parenthesis plus e to the power of x left parenthesis c o s invisible function application space x plus s i n invisible function application space x right parenthesis end cell row blank cell equals negative e to the power of x s i n invisible function application space x plus e to the power of x c o s invisible function application space x plus e to the power of x space c o s invisible function application space x plus e to the power of x space s i n invisible function application space x end cell row blank cell equals 2 e to the power of x c o s invisible function application space x end cell end table end s

 

إعداد : شبكة منهاجي التعليمية

10 / 07 / 2023

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