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[" 17."quad int(x)/(4+x^(4))dx" is equal...

[" 17."quad int(x)/(4+x^(4))dx" is equal to "],[[" (a) "(1)/(4)tan^(-1)x^(2)+C," (b) "(1)/(4)tan^(-1)((x^(2))/(2))," (c) "(1)/(2)tan^(-1)((x^(2))/(2))," (d) none of these "]]

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