InterviewSolution
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`int(x^(2)+x+1)/((x-1)^(3))dx` का मान ज्ञात कीजिए । |
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Answer» `int(x^(2)+x+1)/((x-1)^(3))dx` `=int((t+1)^(2)+(t+1)+1)/(t^(3))` `=int(t^(2)+3t+3)/(t^(3))" "{:("माना "x-1=t),(rArr" "dx=dt):}` `=int((1)/(t)+(3)/(t^(2))+(3)/(t^(3)))dt=log|t|-(3)/(t)-(3)/(2)+c` `=log|x-1|-(3)/(x-1)-(3)/(2(x-1)^(2))+c` |
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