\[ y''(x)=-\frac {y(x) \sec ^2(x) \left (2 x^2+x^2 \sin ^2(x)-24 \cos ^2(x)\right )}{4 x^2}-\tan (x) y'(x)+\sqrt {\cos (x)} \] ✓ Mathematica : cpu = 0.128228 (sec), leaf count = 46
\[\left \{\left \{y(x)\to -\frac {1}{4} x^2 \sqrt {\cos (x)}+\frac {1}{5} c_2 x^3 \sqrt {\cos (x)}+\frac {c_1 \sqrt {\cos (x)}}{x^2}\right \}\right \}\] ✓ Maple : cpu = 0.128 (sec), leaf count = 28
\[ \left \{ y \left ( x \right ) ={\frac {4\,{\it \_C1}\,{x}^{5}-{x}^{4}+4\,{\it \_C2}}{4\,{x}^{2}}\sqrt {\cos \left ( x \right ) }} \right \} \]