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4int(sqrt(a^6+x^8))/x dx is equal to...

`4int(sqrt(a^6+x^8))/x dx is equal to` (a)`sqrt(a^6+x^8)+(a^3)/2ln|(sqrt(a^6+x^8)+a^3)/(sqrt(a^6+x^8)-a^3)|+c` (b) `a^6ln|(sqrt(a^6+x^8)-a^3)/(sqrt(a^6+x^8)+a^3)|+c` (c)`sqrt(a^6+x^8)+(a^3)/2ln|(sqrt(a^6+x^8)-a^3)/(sqrt(a^6+x^8)+a^3)|+c` (d) `a^6ln|(sqrt(a^6+x^8)+a^3)/(sqrt(a^6+x^8)-a^3)|+c`

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