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Hasil dari ∫ csc 4 x − cot 4 x 1 ​ d x = ....

Hasil dari ....

  1. begin mathsize 14px style ln invisible function application open vertical bar 1 minus cos invisible function application 4 x close vertical bar plus C end style 

  2. size 14px 1 over size 14px 4 size 14px ln size 14px invisible function application begin mathsize 14px style vertical line 1 minus cos invisible function application 4 x vertical line end style size 14px plus size 14px C 

  3. size 14px 1 over size 14px 4 size 14px ln size 14px invisible function application begin mathsize 14px style vertical line sin invisible function application 4 x vertical line end style size 14px plus size 14px C 

  4. begin mathsize 14px style ln invisible function application open vertical bar sin invisible function application 4 x close vertical bar plus C end style 

  5. size 14px 1 over size 14px 4 size 14px ln size 14px invisible function application begin mathsize 14px style vertical line sin invisible function application 4 x minus cos invisible function application 4 x vertical line end style size 14px plus size 14px C 

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I. Kumaralalita

Master Teacher

Mahasiswa/Alumni Universitas Gadjah Mada

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Pembahasan

Misalkan u = 1 - cos⁡ 4x maka, Sehingga diperoleh,

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell integral fraction numerator 1 over denominator csc invisible function application 4 x minus cot invisible function application 4 x end fraction d x end cell equals cell integral fraction numerator 1 over denominator open parentheses fraction numerator 1 over denominator sin invisible function application 4 x end fraction minus fraction numerator cos invisible function application 4 x over denominator sin invisible function application 4 x end fraction close parentheses end fraction d x end cell row blank equals cell integral fraction numerator 1 over denominator open parentheses fraction numerator 1 minus cos invisible function application 4 x over denominator sin invisible function application 4 x end fraction close parentheses end fraction d x end cell row blank equals cell integral fraction numerator sin invisible function application 4 x over denominator 1 minus cos invisible function application 4 x end fraction d x end cell end table end style

Misalkan u = 1 - cos⁡ 4x maka,

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell fraction numerator d u over denominator d x end fraction end cell equals cell 4 sin invisible function application 4 x end cell row cell d x end cell equals cell fraction numerator d u over denominator 4 sin invisible function application 4 x end fraction end cell end table end style

Sehingga diperoleh,

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell integral fraction numerator 1 over denominator csc invisible function application 4 x minus cot invisible function application 4 x end fraction d x end cell equals cell integral fraction numerator 1 over denominator open parentheses fraction numerator 1 over denominator sin invisible function application 4 x end fraction minus fraction numerator cos invisible function application 4 x over denominator sin invisible function application 4 x end fraction close parentheses end fraction d x end cell row blank equals cell integral fraction numerator 1 over denominator open parentheses fraction numerator 1 minus cos invisible function application 4 x over denominator sin invisible function application 4 x end fraction close parentheses end fraction d x end cell row blank equals cell integral fraction numerator sin invisible function application 4 x over denominator 1 minus cos invisible function application 4 x end fraction d x end cell row blank equals cell integral fraction numerator sin invisible function application 4 x over denominator u end fraction times fraction numerator d u over denominator 4 sin invisible function application 4 x end fraction end cell row blank equals cell integral fraction numerator 1 over denominator 4 u end fraction d u end cell row blank equals cell 1 fourth ln invisible function application u plus C end cell row blank equals cell 1 fourth ln invisible function application open vertical bar 1 minus cos invisible function application 4 x close vertical bar plus C end cell end table end style 

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