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Question Number 18232 by Joel577 last updated on 17/Jul/17
If f(x) = (√(x^2 (√(3(√(x^2 (√(3(√)...))))))))  find ∫ f(x) dx
Iff(x)=x23x23findf(x)dx
Answered by alex041103 last updated on 17/Jul/17
f(x)=(√(x^2 (√(3f(x)))))  ⇒f^4 (x)=3x^4 f(x)  f^3 (x)=3x^4 ⇒f(x)=(3)^(1/3) ×x^(4/3)   ∫f(x)dx=(3)^(1/3) ∫x^(4/3) dx=(3)^(1/3) ×(3/7)x^(7/3)  + C
f(x)=x23f(x)f4(x)=3x4f(x)f3(x)=3x4f(x)=33×x4/3f(x)dx=33x4/3dx=33×37x7/3+C
Commented by Joel577 last updated on 17/Jul/17
thank you very much
thankyouverymuch

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