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  إجابات كتاب التمارين

إجابات كتاب التمارين

المساحة

أجد مساحة المنطقة المظللة في كل من التمثيلات البيانية الآتية:

التمثيل البياني للسؤال 1

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 A cell equals integral subscript 0 superscript 1 left parenthesis x minus x squared right parenthesis d x plus integral subscript 1 superscript 2 left parenthesis x squared minus x right parenthesis d x end cell row blank cell equals left parenthesis 1 half x squared minus 1 third x cubed right parenthesis vertical line subscript 0 superscript 1 plus left parenthesis 1 third x cubed minus 1 half x squared right parenthesis vertical line subscript 1 superscript 2 end cell row blank cell equals left parenthesis 1 half minus 1 third right parenthesis plus left parenthesis 8 over 3 minus 2 right parenthesis minus left parenthesis 1 third minus 1 half right parenthesis equals 1 end cell end table end style

التمثيل البياني للسؤال 2

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 A cell equals integral subscript 4 superscript 9 fraction numerator 1 over denominator square root of x end fraction d x end cell row blank cell equals integral subscript 4 superscript 9 x to the power of negative 1 half end exponent d x end cell row blank cell equals 2 x to the power of 1 half end exponent vertical line subscript 4 superscript 9 equals 6 minus 4 equals 2 end cell end table end style

التمثيل البياني للسؤال 3

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 A cell equals integral subscript negative 1 end subscript superscript 4 left parenthesis 4 plus 3 x minus x squared right parenthesis d x end cell row blank cell equals left parenthesis 4 x plus 3 over 2 x squared minus 1 third x cubed right parenthesis vertical line subscript negative 1 end subscript superscript 4 end cell row blank cell equals left parenthesis 16 plus 24 minus 64 over 3 right parenthesis minus left parenthesis negative 4 plus 3 over 2 plus 1 third right parenthesis equals 125 over 6 end cell end table end style

التمثيل البياني للسؤال 4

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 A cell equals negative integral subscript negative 1 end subscript superscript 0 left parenthesis 3 x squared plus x minus 2 right parenthesis d x end cell row blank cell equals negative left parenthesis x cubed plus 1 half x squared minus 2 x right parenthesis vertical line subscript negative 1 end subscript superscript 0 end cell row blank cell equals negative left parenthesis left parenthesis 0 right parenthesis minus left parenthesis negative 1 plus 1 half plus 2 right parenthesis right parenthesis equals 3 over 2 end cell end table end style

التمثيل البياني للسؤال 5

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 A cell equals integral subscript negative 1 end subscript superscript 1 left parenthesis 1 minus x squared right parenthesis d x end cell row blank cell equals left parenthesis x minus 1 third x cubed right parenthesis vertical line subscript negative 1 end subscript superscript 1 end cell row blank cell equals left parenthesis 1 minus 1 third right parenthesis minus left parenthesis negative 1 plus 1 third right parenthesis equals 4 over 3 end cell end table end style

التمثيل البياني للسؤال 6

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 A cell equals integral subscript 0 superscript 1 left parenthesis 1 minus x squared right parenthesis d x plus integral subscript 1 superscript 2 left parenthesis x squared minus 1 right parenthesis d x end cell row blank cell equals left parenthesis 1 minus x squared right parenthesis vertical line subscript 0 superscript 1 plus left parenthesis x squared minus 1 right parenthesis vertical line subscript 1 superscript 2 equals 2 end cell end table end style

(7) أجد مساحة المنطقة المحصورة بين منحنى الاقتران: begin mathsize 20px style f left parenthesis x right parenthesis equals 3 x squared minus 3 end style، والمحور begin mathsize 20px style 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 3 x squared minus 3 equals 0 not stretchy rightwards double arrow x squared equals 1 end cell row blank cell space of 2em 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 A cell equals integral subscript negative 1 end subscript superscript 1 left parenthesis 3 minus 3 x squared right parenthesis d x end cell row blank cell equals left parenthesis 3 x minus x cubed right parenthesis vertical line subscript negative 1 end subscript superscript 1 end cell row blank cell equals left parenthesis 3 minus 1 right parenthesis minus left parenthesis negative 3 plus 1 right parenthesis equals 4 end cell end table end cell end table end style

(8) أجد مساحة المنطقة المحصورة بين متحتى الاقتران: begin mathsize 20px style f left parenthesis x right parenthesis equals x cubed minus 5 x squared minus 6 x end style، والمحور begin mathsize 20px style 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 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 x cubed minus 5 x squared minus 6 x equals 0 not stretchy rightwards double arrow x left parenthesis x squared minus 5 x minus 6 right parenthesis equals 0 end cell row blank cell not stretchy rightwards double arrow x left parenthesis x minus 6 right parenthesis left parenthesis x plus 1 right parenthesis equals 0 end cell row blank cell not stretchy rightwards double arrow x equals 0 comma x equals 6 comma x equals negative 1 end cell row blank cell A equals integral subscript negative 1 end subscript superscript 0 left parenthesis x cubed minus 5 x squared minus 6 x right parenthesis d x plus integral subscript 0 superscript 6 left parenthesis negative x cubed plus 5 x squared plus 6 x right parenthesis d x end cell row blank cell equals left parenthesis 1 fourth x to the power of 4 minus 5 over 3 x cubed minus 3 x squared right parenthesis vertical line subscript negative 1 end subscript superscript 0 plus left parenthesis negative 1 fourth x to the power of 4 plus 5 over 3 x cubed plus 3 x squared right parenthesis vertical line subscript 0 superscript 6 end cell row blank cell equals left parenthesis 0 right parenthesis minus left parenthesis 1 fourth plus 5 over 3 minus 3 right parenthesis plus left parenthesis negative 324 plus 360 plus 108 right parenthesis minus left parenthesis 0 right parenthesis equals 1741 over 12 end cell end table end cell end table end style

(9) أجد مساحة المنطقة المحصورة بين منحنى الاقتران: begin mathsize 20px style f left parenthesis x right parenthesis equals x squared left parenthesis 2 minus x right parenthesis end style، والمحور begin mathsize 20px style 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 x squared end cell cell left parenthesis 2 minus x right parenthesis equals 0 not stretchy rightwards double arrow x equals 0 comma x equals 2 end cell row A cell equals integral subscript 0 superscript 2 x squared left parenthesis 2 minus x right parenthesis d x end cell row blank cell equals integral subscript 0 superscript 2 left parenthesis 2 x squared minus x cubed right parenthesis d x end cell row blank cell equals left parenthesis 2 over 3 x cubed minus 1 fourth x to the power of 4 right parenthesis vertical line subscript 0 superscript 2 end cell row blank cell equals left parenthesis 16 over 3 minus 4 right parenthesis minus left parenthesis 0 right parenthesis equals 4 over 3 end cell end table end style

إعداد : شبكة منهاجي التعليمية

09 / 02 / 2023

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