1. **State the problem:**
We need to solve the differential equation $$\frac{dy}{dx} = e^{x} \csc 2y \csc y$$ with the initial condition $$y(0) = \frac{\pi}{6}$$.
2. **Recall the formula and rules:**
This is a separable differential equation. We can write it as:
$$\frac{dy}{dx} = f(x)g(y)$$
which allows us to separate variables:
$$\frac{dy}{g(y)} = f(x) dx$$
3. **Rewrite the equation:**
$$\frac{dy}{dx} = e^{x} \csc 2y \csc y$$
Separate variables:
$$\frac{dy}{\csc 2y \csc y} = e^{x} dx$$
4. **Simplify the left side:**
Recall that $$\csc \theta = \frac{1}{\sin \theta}$$, so:
$$\frac{1}{\csc 2y \csc y} = \sin 2y \sin y$$
Thus:
$$\sin 2y \sin y \, dy = e^{x} dx$$
5. **Use the double-angle identity:**
$$\sin 2y = 2 \sin y \cos y$$
So:
$$\sin 2y \sin y = 2 \sin y \cos y \sin y = 2 \sin^{2} y \cos y$$
6. **Rewrite the separated equation:**
$$2 \sin^{2} y \cos y \, dy = e^{x} dx$$
7. **Integrate both sides:**
$$\int 2 \sin^{2} y \cos y \, dy = \int e^{x} dx$$
8. **Use substitution for the left integral:**
Let $$u = \sin y$$, then $$du = \cos y \, dy$$.
The integral becomes:
$$\int 2 u^{2} du = 2 \int u^{2} du = 2 \cdot \frac{u^{3}}{3} + C = \frac{2}{3} \sin^{3} y + C$$
9. **Integrate the right side:**
$$\int e^{x} dx = e^{x} + C$$
10. **Combine results:**
$$\frac{2}{3} \sin^{3} y = e^{x} + C$$
11. **Apply initial condition $$y(0) = \frac{\pi}{6}$$:**
Calculate $$\sin \frac{\pi}{6} = \frac{1}{2}$$, so:
$$\frac{2}{3} \left( \frac{1}{2} \right)^{3} = e^{0} + C \Rightarrow \frac{2}{3} \cdot \frac{1}{8} = 1 + C \Rightarrow \frac{1}{12} = 1 + C$$
12. **Solve for $$C$$:**
$$C = \frac{1}{12} - 1 = -\frac{11}{12}$$
13. **Write the implicit solution:**
$$\frac{2}{3} \sin^{3} y = e^{x} - \frac{11}{12}$$
14. **Final answer:**
$$\boxed{\frac{2}{3} \sin^{3} y = e^{x} - \frac{11}{12}}$$
This implicit solution relates $$y$$ and $$x$$ satisfying the differential equation and initial condition.
Separable Differential Ddb25E
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