Consider the initial value problem

On which of these intervals is this initial value problem certain to have a unique twice differentiable solution? Select all that apply.
A) $ (0,2 \pi) $
B) $ (-2 \pi, 2 \pi) $
C) $ (0, \infty) $
D) $ \left(\frac{\pi}{12}, \frac{5 \pi}{4}\right) $
E) $ \left(0, \frac{\pi}{12}\right) $
F) $ \left(-\frac{5 \pi}{4}, \frac{5 \pi}{8}\right) $

Question

Consider the initial value problem

On which of these intervals is this initial value problem certain to have a unique twice differentiable solution? Select all that apply.
A) $ (0,2 \pi) $ 
B) $ (-2 \pi, 2 \pi) $ 
C) $ (0, \infty) $ 
D) $ \left(\frac{\pi}{12}, \frac{5 \pi}{4}\right) $ 
E) $ \left(0, \frac{\pi}{12}\right) $ 
F) $ \left(-\frac{5 \pi}{4}, \frac{5 \pi}{8}\right) $

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The Answer of Consider the initial value problem

On which of these intervals is this initial value problem certain to have a unique twice differentiable solution? Select all that apply.
A) $ (0,2 \pi) $ 
B) $ (-2 \pi, 2 \pi) $ 
C) $ (0, \infty) $ 
D) $ \left(\frac{\pi}{12}, \frac{5 \pi}{4}\right) $ 
E) $ \left(0, \frac{\pi}{12}\right) $ 
F) $ \left(-\frac{5 \pi}{4}, \frac{5 \pi}{8}\right) $

Consider the Initial Value Problem on Which of These (0,2π) (0,2 \pi) (0,2π)

Consider the Initial Value Problem

on Which of These $(0,2 \pi)$