For some reason I am unable to solve this Inequation

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Apr 20, 2022, 5:07:07 PM4/20/22

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print(solveset(cos(sqrt(3-8*x-3*x**2)) + (2*x+5)/(x+2), '>='))

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Apr 21, 2022, 7:57:12 AM4/21/22

to sympy

Your presumed answer is false : `3-8*x-3*x^2` s positive only for :

```

sage: solve(3-8*x-3*x^2>=0,x)
[[x >= -3, x <= (1/3)]]

```

Outside this segment, the radicand is negative, the radical is complex non-real, and so is its cosine.