int int(3x)/(1+2x^(4))dx

Evaluate int(3x)/((1+2x^(4)))dx .

Evaluate: int(3x)/(1+2x^4)dx

Evaluate: int(3x)/(1+2x^4)dx

(i) int (3x^2)/(x^6+1) dx (ii) int (3x)/(1+2x^4) dx

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