the movement of the progress bar may be uneven because questions can be worth more or less (including zero)…

the movement of the progress bar may be uneven because questions can be worth more or less (including zero) depending on your answer. for which values of θ in the interval -3π ≤ θ ≤ 3π is the function y = sin θ equal to 0? θ = 0, π, 2π θ = 0, 2π θ = - 2π, 0, 2π θ = - 3π, - 2π, - π, 0, π, 2π, 3π
Answer
Explanation:
Step1: Recall sine - zero property
The sine function $y = \sin\theta=0$ when $\theta = k\pi$, where $k\in\mathbb{Z}$ (the set of integers).
Step2: Find values in given interval
We need to find values of $\theta$ in the interval $- 3\pi\leq\theta\leq3\pi$. When $k=-3,\theta=-3\pi$; when $k = - 2,\theta=-2\pi$; when $k=-1,\theta =-\pi$; when $k = 0,\theta = 0$; when $k = 1,\theta=\pi$; when $k = 2,\theta = 2\pi$; when $k = 3,\theta=3\pi$.
Answer:
$\theta=-3\pi,-2\pi,-\pi,0,\pi,2\pi,3\pi$