# Integrals...(4)

Calculus Level 4

Let $y(x)=\int_{\frac{\pi^2}{16}}^{x^2}\frac{\cos(x) \cos(\sqrt{\theta})}{1+\sin^2(\sqrt{\theta})}d\theta$

Value of $$\frac{dy}{dx}$$ at $$x=\pi$$ can be expressed as $$n\pi$$ find find $$4n+1$$

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