Input:
dsolve(ds(y,x,cos(x))-2y=exp(x))
Write:
`dsolve(ds(y,x,cos(x))-2y=exp(x))`
Output:
$$dsolve(\frac{d^{{cos(x)}}y}{dx^{{cos(x)}}} - 2\ y=exp(x))== (-exp(x))+C_1\ E_{cos(x)} (2\ {x}^{cos(x)})$$
Result: $$(-exp(x))+C_1\ E_{cos(x)} (2\ {x}^{cos(x)})$$
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