حمّل تطبيق منهاجي الجديد

منهاجي صار أسرع من خلال التطبيق

  أتحقق من فهمي

أتحقق من فهمي

مشتقتا الضرب والقسمة

مشتقة ضرب اقترانين

أتحقق من فهمي صفحة 65

أجد مشتقة كل اقتران ممّا يأتي:

(a) begin mathsize 20px style f left parenthesis x right parenthesis equals left parenthesis x cubed plus 4 right parenthesis left parenthesis 7 x squared minus 4 x 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 cell f to the power of straight prime left parenthesis x right parenthesis end cell cell equals left parenthesis x cubed plus 4 right parenthesis left parenthesis 14 x minus 4 right parenthesis plus left parenthesis 7 x squared minus 4 x right parenthesis left parenthesis 3 x squared right parenthesis end cell row blank cell equals 14 x to the power of 4 minus 4 x cubed plus 56 x minus 16 plus 21 x to the power of 4 minus 12 x cubed end cell row blank cell equals 35 x to the power of 4 minus 16 x cubed plus 56 x minus 16 end cell end table end style

(b) begin mathsize 20px style f left parenthesis x right parenthesis equals left parenthesis square root of x plus 1 right parenthesis left parenthesis 3 x minus 2 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 cell f to the power of straight prime left parenthesis x right parenthesis end cell cell equals left parenthesis square root of x plus 1 right parenthesis left parenthesis 3 right parenthesis plus left parenthesis 3 x minus 2 right parenthesis left parenthesis fraction numerator 1 over denominator 2 square root of x end fraction right parenthesis end cell row blank cell equals 3 square root of x plus 3 plus fraction numerator 3 x over denominator 2 square root of x end fraction minus fraction numerator 1 over denominator square root of x end fraction end cell row blank cell equals 3 square root of x plus 3 plus 3 over 2 square root of x minus fraction numerator 1 over denominator square root of x end fraction end cell row blank cell equals 9 over 2 square root of x plus 3 minus fraction numerator 1 over denominator square root of x end fraction end cell end table end style


مشتقة قسمة اقترانين

أتحقق من فهمي صفحة 67

أجد مشتقة كل اقتران ممّا يأتي:

(a) begin mathsize 20px style f left parenthesis x right parenthesis equals fraction numerator 3 x plus 1 over denominator x minus 2 end fraction 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 fraction numerator left parenthesis x minus 2 right parenthesis left parenthesis 3 right parenthesis minus left parenthesis 3 x plus 1 right parenthesis left parenthesis 1 right parenthesis over denominator left parenthesis x minus 2 right parenthesis squared end fraction end cell row blank cell equals fraction numerator 3 x minus 6 minus 3 x minus 1 over denominator left parenthesis x minus 2 right parenthesis squared end fraction end cell row blank cell equals fraction numerator negative 7 over denominator left parenthesis x minus 2 right parenthesis squared end fraction end cell end table end style

(b) begin mathsize 20px style f left parenthesis x right parenthesis equals fraction numerator x to the power of negative 3 end exponent over denominator x squared plus 1 end fraction 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 fraction numerator left parenthesis x squared plus 1 right parenthesis left parenthesis negative 3 x to the power of negative 4 end exponent right parenthesis minus left parenthesis x to the power of negative 3 end exponent right parenthesis left parenthesis 2 x right parenthesis over denominator left parenthesis x squared plus 1 right parenthesis squared end fraction end cell row blank cell equals fraction numerator negative 3 x to the power of negative 2 end exponent minus 3 x to the power of negative 4 end exponent minus 2 x to the power of negative 2 end exponent over denominator left parenthesis x squared plus 1 right parenthesis squared end fraction end cell row blank cell equals fraction numerator negative 5 x to the power of negative 2 end exponent minus 3 x to the power of negative 4 end exponent over denominator left parenthesis x squared plus 1 right parenthesis squared end fraction end cell end table end style

 

أتحقق من فهمي صفحة 68

سكان: يُمثل عدد سكان بلدة صغيرة بالاقتران: begin mathsize 20px style P left parenthesis t right parenthesis equals fraction numerator 5 over denominator 2 t squared plus 9 end fraction end style ، حيث t الزمن بالسنوات منذ الآن، و P عدد السكان بالآلاف:

(a) أجد معدل تغير عدد السكان في البلدة بالنسبة إلى الزمن t .

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 P to the power of straight prime left parenthesis t right parenthesis end cell cell equals fraction numerator left parenthesis 2 t squared plus 9 right parenthesis left parenthesis 0 right parenthesis minus left parenthesis 5 right parenthesis left parenthesis 4 t right parenthesis over denominator left parenthesis 2 t squared plus 9 right parenthesis squared end fraction end cell row blank cell equals fraction numerator negative 20 t over denominator left parenthesis 2 t squared plus 9 right parenthesis squared end fraction end cell end table end style

(b) أجد معدل تغير عدد السكان في البلدة عندما= 2  t ، مفسّراً معنى الناتج.

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يتناقص عدد السكان بمعدل 140 نسمة لكل سنة بعد سنتين من الآن.


مشتقة المقلوب

أتحقق من فهمي صفحة 70

أجد مشتقة كل اقتران ممّا يأتي:

(a) begin mathsize 20px style f left parenthesis x right parenthesis equals fraction numerator 1 over denominator 1 minus x cubed end fraction 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 fraction numerator negative left parenthesis 1 right parenthesis left parenthesis negative 3 x squared right parenthesis over denominator left parenthesis 1 minus x cubed right parenthesis squared end fraction end cell row blank cell equals fraction numerator 3 x squared over denominator left parenthesis 1 minus x cubed right parenthesis squared end fraction end cell end table end style

(b) begin mathsize 20px style f left parenthesis x right parenthesis equals fraction numerator 3 over denominator 2 x plus 1 end fraction 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 fraction numerator negative left parenthesis 3 right parenthesis left parenthesis 2 right parenthesis over denominator left parenthesis 2 x plus 1 right parenthesis squared end fraction end cell row blank cell equals fraction numerator negative 6 over denominator left parenthesis 2 x plus 1 right parenthesis squared end fraction end cell end table end style


مشتقتا الضرب والقسمة وقاعدة السلسلة

أتحقق من فهمي صفحة 71

أجد مشتقة كل اقتران ممّا يأتي:

(a) begin mathsize 20px style f left parenthesis x right parenthesis equals 20 x left parenthesis 4 x cubed minus 1 right parenthesis to the power of 6 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 20 x right parenthesis cross times 6 left parenthesis 4 x cubed minus 1 right parenthesis to the power of 5 left parenthesis 12 x squared right parenthesis plus left parenthesis 4 x cubed minus 1 right parenthesis to the power of 6 left parenthesis 20 right parenthesis end cell row blank cell equals left parenthesis 4 x cubed minus 1 right parenthesis to the power of 5 left parenthesis 1520 x cubed minus 20 right parenthesis end cell end table end style

(b) begin mathsize 20px style f left parenthesis x right parenthesis equals fraction numerator x squared minus 1 over denominator left parenthesis x plus 2 right parenthesis to the power of 4 end fraction 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 equals end cell cell fraction numerator left parenthesis x plus 2 right parenthesis to the power of 4 left parenthesis 2 x right parenthesis minus left parenthesis x squared minus 1 right parenthesis cross times 4 left parenthesis x plus 2 right parenthesis cubed cross times 1 over denominator left parenthesis x plus 2 right parenthesis to the power of 8 end fraction end cell row blank cell equals fraction numerator 2 x left parenthesis x plus 2 right parenthesis to the power of 4 minus 4 left parenthesis x squared minus 1 right parenthesis left parenthesis x plus 2 right parenthesis cubed over denominator left parenthesis x plus 2 right parenthesis to the power of 8 end fraction end cell row blank cell equals fraction numerator negative 2 x squared plus 4 x plus 4 over denominator left parenthesis x plus 2 right parenthesis to the power of 5 left parenthesis 2 x left parenthesis x plus 2 right parenthesis minus 4 left parenthesis x squared minus 1 right parenthesis right parenthesis end fraction end cell end table end style

إعداد : شبكة منهاجي التعليمية

10 / 07 / 2023

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