# Magic of 4

Calculus Level 4

$$\large 4x\frac{d^2y}{dx^2} + 4\frac{dy}{dx} + (4^2x - \frac{1}{x})y = 0$$

If at $$x=\pi , y=\pi$$ and at $$x=\frac{\pi}{4} , y=2\pi$$.

Find the value of $$\large f(10)$$

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