Let $n$ be a non-zero natural number and $t$ be a real number. Using the result of Q1, deduce $$\sin\left(\frac{t}{2^n}\right) \Phi_{X_n}(t) = \frac{\sin(t)}{2^n}.$$
Let $n$ be a non-zero natural number and $t$ be a real number. Using the result of Q1, deduce
$$\sin\left(\frac{t}{2^n}\right) \Phi_{X_n}(t) = \frac{\sin(t)}{2^n}.$$