2.1438   ODE No. 1438

1. Problem in Latex
2. Mathematica input
3. Maple input

$$y^{″}(x)=y(x)(-{\csc }^2(x)){\sec }^2(x)(-a{\sin }^2(x){\cos }^2(x)-(m-1)m{\sin }^2(x)-(n-1)n{\cos }^2(x))$$ ✓ Mathematica : cpu = 0.974721 (sec), leaf count = 615

$$\left\{\{y(x)\to \frac{c_2(-1{)}^{\frac{1}{2}(-2m-1)+1}{\cos }^2(x{)}^{\frac{1}{4}(-2m-1)+1}{({\cos }^2(x)-1)}^{\frac{1}{2}(\frac{4am+4\sqrt{-a}{n}^2+4an-4\sqrt{-a}n+4(-a{)}^{3/2}+8\sqrt{-a}a+\sqrt{-a}+4m{n}^2-4mn+m+4n^3-4n^2+n}{8a+8n^2-8n+2}+\frac{1}{2}(-\sqrt{-a}+m+n)+\frac{1}{2}(-2m-1)+1)-\frac{1}{4}}{}_2{F}_1(\frac{1}{2}(-2m-1)+\frac{1}{2}(m+n-\sqrt{-a})+1,\frac{1}{2}(-2m-1)+\frac{4n^3+4m{n}^2+4\sqrt{-a}{n}^2-4n^2+4an-4mn-4\sqrt{-a}n+n+4(-a{)}^{3/2}+8\sqrt{-a}a+4am+m+\sqrt{-a}}{8n^2-8n+8a+2}+1;\frac{1}{2}(-2m-1)+2;{\cos }^2(x))}{\sqrt{\cos (x)}}+\frac{c_1{\cos }^2(x{)}^{\frac{1}{4}(2m+1)}{({\cos }^2(x)-1)}^{\frac{1}{2}(\frac{4am+4\sqrt{-a}{n}^2+4an-4\sqrt{-a}n+4(-a{)}^{3/2}+8\sqrt{-a}a+\sqrt{-a}+4m{n}^2-4mn+m+4n^3-4n^2+n}{8a+8n^2-8n+2}+\frac{1}{2}(-\sqrt{-a}+m+n)+\frac{1}{2}(-2m-1)+1)-\frac{1}{4}}{}_2{F}_1(\frac{1}{2}(m+n-\sqrt{-a}),\frac{4n^3+4m{n}^2+4\sqrt{-a}{n}^2-4n^2+4an-4mn-4\sqrt{-a}n+n+4(-a{)}^{3/2}+8\sqrt{-a}a+4am+m+\sqrt{-a}}{8n^2-8n+8a+2};\frac{1}{2}(2m+1);{\cos }^2(x))}{\sqrt{\cos (x)}}\}\right\}$$

✓ Maple : cpu = 0.229 (sec), leaf count = 105

$$\{y\left(x\right)=\mathit{\_}\mathit{C}\mathit{1}{(\cos \left(x\right))}^m{(\sin \left(x\right))}^n{}_2\text{F}{}_1(\frac{n}{2}+\frac{m}{2}+\frac{i}{2}\sqrt{a},\frac{n}{2}+\frac{m}{2}-\frac{i}{2}\sqrt{a};m+\frac{1}{2};{(\cos \left(x\right))}^2)+\mathit{\_}\mathit{C}\mathit{2}{(\cos \left(x\right))}^{-m+1}{(\sin \left(x\right))}^n{}_2\text{F}{}_1(\frac{n}{2}-\frac{m}{2}+\frac{i}{2}\sqrt{a}+\frac{1}{2},\frac{n}{2}-\frac{m}{2}-\frac{i}{2}\sqrt{a}+\frac{1}{2};\frac{3}{2}-m;{(\cos \left(x\right))}^2)\}$$