Optimal. Leaf size=245 \[ -\frac {(3 a d+b c) \log \left (-\sqrt {2} \sqrt [4]{c} \sqrt [4]{d} x+\sqrt {c}+\sqrt {d} x^2\right )}{16 \sqrt {2} c^{7/4} d^{5/4}}+\frac {(3 a d+b c) \log \left (\sqrt {2} \sqrt [4]{c} \sqrt [4]{d} x+\sqrt {c}+\sqrt {d} x^2\right )}{16 \sqrt {2} c^{7/4} d^{5/4}}-\frac {(3 a d+b c) \tan ^{-1}\left (1-\frac {\sqrt {2} \sqrt [4]{d} x}{\sqrt [4]{c}}\right )}{8 \sqrt {2} c^{7/4} d^{5/4}}+\frac {(3 a d+b c) \tan ^{-1}\left (\frac {\sqrt {2} \sqrt [4]{d} x}{\sqrt [4]{c}}+1\right )}{8 \sqrt {2} c^{7/4} d^{5/4}}-\frac {x (b c-a d)}{4 c d \left (c+d x^4\right )} \]
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Rubi [A] time = 0.15, antiderivative size = 245, normalized size of antiderivative = 1.00, number of steps used = 10, number of rules used = 7, integrand size = 17, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.412, Rules used = {385, 211, 1165, 628, 1162, 617, 204} \[ -\frac {(3 a d+b c) \log \left (-\sqrt {2} \sqrt [4]{c} \sqrt [4]{d} x+\sqrt {c}+\sqrt {d} x^2\right )}{16 \sqrt {2} c^{7/4} d^{5/4}}+\frac {(3 a d+b c) \log \left (\sqrt {2} \sqrt [4]{c} \sqrt [4]{d} x+\sqrt {c}+\sqrt {d} x^2\right )}{16 \sqrt {2} c^{7/4} d^{5/4}}-\frac {(3 a d+b c) \tan ^{-1}\left (1-\frac {\sqrt {2} \sqrt [4]{d} x}{\sqrt [4]{c}}\right )}{8 \sqrt {2} c^{7/4} d^{5/4}}+\frac {(3 a d+b c) \tan ^{-1}\left (\frac {\sqrt {2} \sqrt [4]{d} x}{\sqrt [4]{c}}+1\right )}{8 \sqrt {2} c^{7/4} d^{5/4}}-\frac {x (b c-a d)}{4 c d \left (c+d x^4\right )} \]
Antiderivative was successfully verified.
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Rule 204
Rule 211
Rule 385
Rule 617
Rule 628
Rule 1162
Rule 1165
Rubi steps
\begin {align*} \int \frac {a+b x^4}{\left (c+d x^4\right )^2} \, dx &=-\frac {(b c-a d) x}{4 c d \left (c+d x^4\right )}+\frac {(b c+3 a d) \int \frac {1}{c+d x^4} \, dx}{4 c d}\\ &=-\frac {(b c-a d) x}{4 c d \left (c+d x^4\right )}+\frac {(b c+3 a d) \int \frac {\sqrt {c}-\sqrt {d} x^2}{c+d x^4} \, dx}{8 c^{3/2} d}+\frac {(b c+3 a d) \int \frac {\sqrt {c}+\sqrt {d} x^2}{c+d x^4} \, dx}{8 c^{3/2} d}\\ &=-\frac {(b c-a d) x}{4 c d \left (c+d x^4\right )}+\frac {(b c+3 a d) \int \frac {1}{\frac {\sqrt {c}}{\sqrt {d}}-\frac {\sqrt {2} \sqrt [4]{c} x}{\sqrt [4]{d}}+x^2} \, dx}{16 c^{3/2} d^{3/2}}+\frac {(b c+3 a d) \int \frac {1}{\frac {\sqrt {c}}{\sqrt {d}}+\frac {\sqrt {2} \sqrt [4]{c} x}{\sqrt [4]{d}}+x^2} \, dx}{16 c^{3/2} d^{3/2}}-\frac {(b c+3 a d) \int \frac {\frac {\sqrt {2} \sqrt [4]{c}}{\sqrt [4]{d}}+2 x}{-\frac {\sqrt {c}}{\sqrt {d}}-\frac {\sqrt {2} \sqrt [4]{c} x}{\sqrt [4]{d}}-x^2} \, dx}{16 \sqrt {2} c^{7/4} d^{5/4}}-\frac {(b c+3 a d) \int \frac {\frac {\sqrt {2} \sqrt [4]{c}}{\sqrt [4]{d}}-2 x}{-\frac {\sqrt {c}}{\sqrt {d}}+\frac {\sqrt {2} \sqrt [4]{c} x}{\sqrt [4]{d}}-x^2} \, dx}{16 \sqrt {2} c^{7/4} d^{5/4}}\\ &=-\frac {(b c-a d) x}{4 c d \left (c+d x^4\right )}-\frac {(b c+3 a d) \log \left (\sqrt {c}-\sqrt {2} \sqrt [4]{c} \sqrt [4]{d} x+\sqrt {d} x^2\right )}{16 \sqrt {2} c^{7/4} d^{5/4}}+\frac {(b c+3 a d) \log \left (\sqrt {c}+\sqrt {2} \sqrt [4]{c} \sqrt [4]{d} x+\sqrt {d} x^2\right )}{16 \sqrt {2} c^{7/4} d^{5/4}}+\frac {(b c+3 a d) \operatorname {Subst}\left (\int \frac {1}{-1-x^2} \, dx,x,1-\frac {\sqrt {2} \sqrt [4]{d} x}{\sqrt [4]{c}}\right )}{8 \sqrt {2} c^{7/4} d^{5/4}}-\frac {(b c+3 a d) \operatorname {Subst}\left (\int \frac {1}{-1-x^2} \, dx,x,1+\frac {\sqrt {2} \sqrt [4]{d} x}{\sqrt [4]{c}}\right )}{8 \sqrt {2} c^{7/4} d^{5/4}}\\ &=-\frac {(b c-a d) x}{4 c d \left (c+d x^4\right )}-\frac {(b c+3 a d) \tan ^{-1}\left (1-\frac {\sqrt {2} \sqrt [4]{d} x}{\sqrt [4]{c}}\right )}{8 \sqrt {2} c^{7/4} d^{5/4}}+\frac {(b c+3 a d) \tan ^{-1}\left (1+\frac {\sqrt {2} \sqrt [4]{d} x}{\sqrt [4]{c}}\right )}{8 \sqrt {2} c^{7/4} d^{5/4}}-\frac {(b c+3 a d) \log \left (\sqrt {c}-\sqrt {2} \sqrt [4]{c} \sqrt [4]{d} x+\sqrt {d} x^2\right )}{16 \sqrt {2} c^{7/4} d^{5/4}}+\frac {(b c+3 a d) \log \left (\sqrt {c}+\sqrt {2} \sqrt [4]{c} \sqrt [4]{d} x+\sqrt {d} x^2\right )}{16 \sqrt {2} c^{7/4} d^{5/4}}\\ \end {align*}
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Mathematica [A] time = 0.20, size = 212, normalized size = 0.87 \[ \frac {-\frac {8 c^{3/4} \sqrt [4]{d} x (b c-a d)}{c+d x^4}-\sqrt {2} (3 a d+b c) \log \left (-\sqrt {2} \sqrt [4]{c} \sqrt [4]{d} x+\sqrt {c}+\sqrt {d} x^2\right )+\sqrt {2} (3 a d+b c) \log \left (\sqrt {2} \sqrt [4]{c} \sqrt [4]{d} x+\sqrt {c}+\sqrt {d} x^2\right )-2 \sqrt {2} (3 a d+b c) \tan ^{-1}\left (1-\frac {\sqrt {2} \sqrt [4]{d} x}{\sqrt [4]{c}}\right )+2 \sqrt {2} (3 a d+b c) \tan ^{-1}\left (\frac {\sqrt {2} \sqrt [4]{d} x}{\sqrt [4]{c}}+1\right )}{32 c^{7/4} d^{5/4}} \]
Antiderivative was successfully verified.
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fricas [B] time = 1.19, size = 711, normalized size = 2.90 \[ \frac {4 \, {\left (c d^{2} x^{4} + c^{2} d\right )} \left (-\frac {b^{4} c^{4} + 12 \, a b^{3} c^{3} d + 54 \, a^{2} b^{2} c^{2} d^{2} + 108 \, a^{3} b c d^{3} + 81 \, a^{4} d^{4}}{c^{7} d^{5}}\right )^{\frac {1}{4}} \arctan \left (-\frac {c^{5} d^{4} x \left (-\frac {b^{4} c^{4} + 12 \, a b^{3} c^{3} d + 54 \, a^{2} b^{2} c^{2} d^{2} + 108 \, a^{3} b c d^{3} + 81 \, a^{4} d^{4}}{c^{7} d^{5}}\right )^{\frac {3}{4}} - c^{5} d^{4} \sqrt {\frac {c^{4} d^{2} \sqrt {-\frac {b^{4} c^{4} + 12 \, a b^{3} c^{3} d + 54 \, a^{2} b^{2} c^{2} d^{2} + 108 \, a^{3} b c d^{3} + 81 \, a^{4} d^{4}}{c^{7} d^{5}}} + {\left (b^{2} c^{2} + 6 \, a b c d + 9 \, a^{2} d^{2}\right )} x^{2}}{b^{2} c^{2} + 6 \, a b c d + 9 \, a^{2} d^{2}}} \left (-\frac {b^{4} c^{4} + 12 \, a b^{3} c^{3} d + 54 \, a^{2} b^{2} c^{2} d^{2} + 108 \, a^{3} b c d^{3} + 81 \, a^{4} d^{4}}{c^{7} d^{5}}\right )^{\frac {3}{4}}}{b^{3} c^{3} + 9 \, a b^{2} c^{2} d + 27 \, a^{2} b c d^{2} + 27 \, a^{3} d^{3}}\right ) + {\left (c d^{2} x^{4} + c^{2} d\right )} \left (-\frac {b^{4} c^{4} + 12 \, a b^{3} c^{3} d + 54 \, a^{2} b^{2} c^{2} d^{2} + 108 \, a^{3} b c d^{3} + 81 \, a^{4} d^{4}}{c^{7} d^{5}}\right )^{\frac {1}{4}} \log \left (c^{2} d \left (-\frac {b^{4} c^{4} + 12 \, a b^{3} c^{3} d + 54 \, a^{2} b^{2} c^{2} d^{2} + 108 \, a^{3} b c d^{3} + 81 \, a^{4} d^{4}}{c^{7} d^{5}}\right )^{\frac {1}{4}} + {\left (b c + 3 \, a d\right )} x\right ) - {\left (c d^{2} x^{4} + c^{2} d\right )} \left (-\frac {b^{4} c^{4} + 12 \, a b^{3} c^{3} d + 54 \, a^{2} b^{2} c^{2} d^{2} + 108 \, a^{3} b c d^{3} + 81 \, a^{4} d^{4}}{c^{7} d^{5}}\right )^{\frac {1}{4}} \log \left (-c^{2} d \left (-\frac {b^{4} c^{4} + 12 \, a b^{3} c^{3} d + 54 \, a^{2} b^{2} c^{2} d^{2} + 108 \, a^{3} b c d^{3} + 81 \, a^{4} d^{4}}{c^{7} d^{5}}\right )^{\frac {1}{4}} + {\left (b c + 3 \, a d\right )} x\right ) - 4 \, {\left (b c - a d\right )} x}{16 \, {\left (c d^{2} x^{4} + c^{2} d\right )}} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.17, size = 266, normalized size = 1.09 \[ \frac {\sqrt {2} {\left (\left (c d^{3}\right )^{\frac {1}{4}} b c + 3 \, \left (c d^{3}\right )^{\frac {1}{4}} a d\right )} \arctan \left (\frac {\sqrt {2} {\left (2 \, x + \sqrt {2} \left (\frac {c}{d}\right )^{\frac {1}{4}}\right )}}{2 \, \left (\frac {c}{d}\right )^{\frac {1}{4}}}\right )}{16 \, c^{2} d^{2}} + \frac {\sqrt {2} {\left (\left (c d^{3}\right )^{\frac {1}{4}} b c + 3 \, \left (c d^{3}\right )^{\frac {1}{4}} a d\right )} \arctan \left (\frac {\sqrt {2} {\left (2 \, x - \sqrt {2} \left (\frac {c}{d}\right )^{\frac {1}{4}}\right )}}{2 \, \left (\frac {c}{d}\right )^{\frac {1}{4}}}\right )}{16 \, c^{2} d^{2}} + \frac {\sqrt {2} {\left (\left (c d^{3}\right )^{\frac {1}{4}} b c + 3 \, \left (c d^{3}\right )^{\frac {1}{4}} a d\right )} \log \left (x^{2} + \sqrt {2} x \left (\frac {c}{d}\right )^{\frac {1}{4}} + \sqrt {\frac {c}{d}}\right )}{32 \, c^{2} d^{2}} - \frac {\sqrt {2} {\left (\left (c d^{3}\right )^{\frac {1}{4}} b c + 3 \, \left (c d^{3}\right )^{\frac {1}{4}} a d\right )} \log \left (x^{2} - \sqrt {2} x \left (\frac {c}{d}\right )^{\frac {1}{4}} + \sqrt {\frac {c}{d}}\right )}{32 \, c^{2} d^{2}} - \frac {b c x - a d x}{4 \, {\left (d x^{4} + c\right )} c d} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.05, size = 295, normalized size = 1.20 \[ \frac {3 \left (\frac {c}{d}\right )^{\frac {1}{4}} \sqrt {2}\, a \arctan \left (\frac {\sqrt {2}\, x}{\left (\frac {c}{d}\right )^{\frac {1}{4}}}-1\right )}{16 c^{2}}+\frac {3 \left (\frac {c}{d}\right )^{\frac {1}{4}} \sqrt {2}\, a \arctan \left (\frac {\sqrt {2}\, x}{\left (\frac {c}{d}\right )^{\frac {1}{4}}}+1\right )}{16 c^{2}}+\frac {3 \left (\frac {c}{d}\right )^{\frac {1}{4}} \sqrt {2}\, a \ln \left (\frac {x^{2}+\left (\frac {c}{d}\right )^{\frac {1}{4}} \sqrt {2}\, x +\sqrt {\frac {c}{d}}}{x^{2}-\left (\frac {c}{d}\right )^{\frac {1}{4}} \sqrt {2}\, x +\sqrt {\frac {c}{d}}}\right )}{32 c^{2}}+\frac {\left (\frac {c}{d}\right )^{\frac {1}{4}} \sqrt {2}\, b \arctan \left (\frac {\sqrt {2}\, x}{\left (\frac {c}{d}\right )^{\frac {1}{4}}}-1\right )}{16 c d}+\frac {\left (\frac {c}{d}\right )^{\frac {1}{4}} \sqrt {2}\, b \arctan \left (\frac {\sqrt {2}\, x}{\left (\frac {c}{d}\right )^{\frac {1}{4}}}+1\right )}{16 c d}+\frac {\left (\frac {c}{d}\right )^{\frac {1}{4}} \sqrt {2}\, b \ln \left (\frac {x^{2}+\left (\frac {c}{d}\right )^{\frac {1}{4}} \sqrt {2}\, x +\sqrt {\frac {c}{d}}}{x^{2}-\left (\frac {c}{d}\right )^{\frac {1}{4}} \sqrt {2}\, x +\sqrt {\frac {c}{d}}}\right )}{32 c d}+\frac {\left (a d -b c \right ) x}{4 \left (d \,x^{4}+c \right ) c d} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 1.16, size = 236, normalized size = 0.96 \[ -\frac {{\left (b c - a d\right )} x}{4 \, {\left (c d^{2} x^{4} + c^{2} d\right )}} + \frac {\frac {2 \, \sqrt {2} {\left (b c + 3 \, a d\right )} \arctan \left (\frac {\sqrt {2} {\left (2 \, \sqrt {d} x + \sqrt {2} c^{\frac {1}{4}} d^{\frac {1}{4}}\right )}}{2 \, \sqrt {\sqrt {c} \sqrt {d}}}\right )}{\sqrt {c} \sqrt {\sqrt {c} \sqrt {d}}} + \frac {2 \, \sqrt {2} {\left (b c + 3 \, a d\right )} \arctan \left (\frac {\sqrt {2} {\left (2 \, \sqrt {d} x - \sqrt {2} c^{\frac {1}{4}} d^{\frac {1}{4}}\right )}}{2 \, \sqrt {\sqrt {c} \sqrt {d}}}\right )}{\sqrt {c} \sqrt {\sqrt {c} \sqrt {d}}} + \frac {\sqrt {2} {\left (b c + 3 \, a d\right )} \log \left (\sqrt {d} x^{2} + \sqrt {2} c^{\frac {1}{4}} d^{\frac {1}{4}} x + \sqrt {c}\right )}{c^{\frac {3}{4}} d^{\frac {1}{4}}} - \frac {\sqrt {2} {\left (b c + 3 \, a d\right )} \log \left (\sqrt {d} x^{2} - \sqrt {2} c^{\frac {1}{4}} d^{\frac {1}{4}} x + \sqrt {c}\right )}{c^{\frac {3}{4}} d^{\frac {1}{4}}}}{32 \, c d} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 1.52, size = 740, normalized size = 3.02 \[ \frac {\mathrm {atan}\left (\frac {\frac {\left (\frac {x\,\left (9\,a^2\,d^3+6\,a\,b\,c\,d^2+b^2\,c^2\,d\right )}{4\,c^2}-\frac {\left (3\,a\,d+b\,c\right )\,\left (12\,a\,d^3+4\,b\,c\,d^2\right )\,1{}\mathrm {i}}{16\,{\left (-c\right )}^{7/4}\,d^{5/4}}\right )\,\left (3\,a\,d+b\,c\right )}{16\,{\left (-c\right )}^{7/4}\,d^{5/4}}+\frac {\left (\frac {x\,\left (9\,a^2\,d^3+6\,a\,b\,c\,d^2+b^2\,c^2\,d\right )}{4\,c^2}+\frac {\left (3\,a\,d+b\,c\right )\,\left (12\,a\,d^3+4\,b\,c\,d^2\right )\,1{}\mathrm {i}}{16\,{\left (-c\right )}^{7/4}\,d^{5/4}}\right )\,\left (3\,a\,d+b\,c\right )}{16\,{\left (-c\right )}^{7/4}\,d^{5/4}}}{\frac {\left (\frac {x\,\left (9\,a^2\,d^3+6\,a\,b\,c\,d^2+b^2\,c^2\,d\right )}{4\,c^2}-\frac {\left (3\,a\,d+b\,c\right )\,\left (12\,a\,d^3+4\,b\,c\,d^2\right )\,1{}\mathrm {i}}{16\,{\left (-c\right )}^{7/4}\,d^{5/4}}\right )\,\left (3\,a\,d+b\,c\right )\,1{}\mathrm {i}}{16\,{\left (-c\right )}^{7/4}\,d^{5/4}}-\frac {\left (\frac {x\,\left (9\,a^2\,d^3+6\,a\,b\,c\,d^2+b^2\,c^2\,d\right )}{4\,c^2}+\frac {\left (3\,a\,d+b\,c\right )\,\left (12\,a\,d^3+4\,b\,c\,d^2\right )\,1{}\mathrm {i}}{16\,{\left (-c\right )}^{7/4}\,d^{5/4}}\right )\,\left (3\,a\,d+b\,c\right )\,1{}\mathrm {i}}{16\,{\left (-c\right )}^{7/4}\,d^{5/4}}}\right )\,\left (3\,a\,d+b\,c\right )}{8\,{\left (-c\right )}^{7/4}\,d^{5/4}}+\frac {x\,\left (a\,d-b\,c\right )}{4\,c\,d\,\left (d\,x^4+c\right )}+\frac {\mathrm {atan}\left (\frac {\frac {\left (\frac {x\,\left (9\,a^2\,d^3+6\,a\,b\,c\,d^2+b^2\,c^2\,d\right )}{4\,c^2}-\frac {\left (3\,a\,d+b\,c\right )\,\left (12\,a\,d^3+4\,b\,c\,d^2\right )}{16\,{\left (-c\right )}^{7/4}\,d^{5/4}}\right )\,\left (3\,a\,d+b\,c\right )\,1{}\mathrm {i}}{16\,{\left (-c\right )}^{7/4}\,d^{5/4}}+\frac {\left (\frac {x\,\left (9\,a^2\,d^3+6\,a\,b\,c\,d^2+b^2\,c^2\,d\right )}{4\,c^2}+\frac {\left (3\,a\,d+b\,c\right )\,\left (12\,a\,d^3+4\,b\,c\,d^2\right )}{16\,{\left (-c\right )}^{7/4}\,d^{5/4}}\right )\,\left (3\,a\,d+b\,c\right )\,1{}\mathrm {i}}{16\,{\left (-c\right )}^{7/4}\,d^{5/4}}}{\frac {\left (\frac {x\,\left (9\,a^2\,d^3+6\,a\,b\,c\,d^2+b^2\,c^2\,d\right )}{4\,c^2}-\frac {\left (3\,a\,d+b\,c\right )\,\left (12\,a\,d^3+4\,b\,c\,d^2\right )}{16\,{\left (-c\right )}^{7/4}\,d^{5/4}}\right )\,\left (3\,a\,d+b\,c\right )}{16\,{\left (-c\right )}^{7/4}\,d^{5/4}}-\frac {\left (\frac {x\,\left (9\,a^2\,d^3+6\,a\,b\,c\,d^2+b^2\,c^2\,d\right )}{4\,c^2}+\frac {\left (3\,a\,d+b\,c\right )\,\left (12\,a\,d^3+4\,b\,c\,d^2\right )}{16\,{\left (-c\right )}^{7/4}\,d^{5/4}}\right )\,\left (3\,a\,d+b\,c\right )}{16\,{\left (-c\right )}^{7/4}\,d^{5/4}}}\right )\,\left (3\,a\,d+b\,c\right )\,1{}\mathrm {i}}{8\,{\left (-c\right )}^{7/4}\,d^{5/4}} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 0.85, size = 112, normalized size = 0.46 \[ \frac {x \left (a d - b c\right )}{4 c^{2} d + 4 c d^{2} x^{4}} + \operatorname {RootSum} {\left (65536 t^{4} c^{7} d^{5} + 81 a^{4} d^{4} + 108 a^{3} b c d^{3} + 54 a^{2} b^{2} c^{2} d^{2} + 12 a b^{3} c^{3} d + b^{4} c^{4}, \left (t \mapsto t \log {\left (\frac {16 t c^{2} d}{3 a d + b c} + x \right )} \right )\right )} \]
Verification of antiderivative is not currently implemented for this CAS.
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