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Grade 12th passIntegral Calculus

∫(x^-11)/Sqrt(1+x^4) dx Is equal to how much_------------@------------

Profile image of Subramanyam
7 Years agoGrade 12th pass
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Profile image of Subramanyam
7 Years ago
∫1/(x^13*(sqrt(1+1/(x^4))))dx---(4)
1+1/(x^4)=t^2----(1)
1/(x^8)=(t^2-1)^2---(2)
-4/(x^5)dx=2tdt----(3)substitute these 3 in (4)