A secure password must be complex and unpredictable. It should include a mix of small and capital letters, numbers, and special characters. This combination makes it resistant to hacking attempts like brute force or dictionary attacks.
In the adjoining figure, TP and TQ are tangents drawn to a circle with centre O. If $\angle OPQ = 15^\circ$ and $\angle PTQ = \theta$, then find the value of $\sin 2\theta$. 