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`int(x^(2)tan^(-1)x^(3))/(1+x^(6))` का मान ज्ञात कीजिए । |
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Answer» माना `I=int(x^(2).tan^(-1)x^(3))/(1+x^(6))dx` `" "=int tan^(-1)x^(3).((x^(2)dx)/(1+x^(6)))` माना `tan^(-1)x^(3)=t` `rArr" "(1)/(1+x^(6)).3x^(2)=(dt)/(dx)` `rArr" "(x^(2)dx)/(1+x^(6))=(dt)/(3)` ltBrgt `therefore" "I=intt.(dt)/(3)=(1)/(6)t^(2)+c` `" "=(1)/(6)(tan^(-1)x^(3))^(2)+c` |
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