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10 questions from this quiz
−π2≤θ≤π2-\frac{\pi}{2} \leq \theta \leq \frac{\pi}{2}−2π≤θ≤2π
−∞<x<∞-\infty < x < \infty−∞<x<∞ (all real numbers)
π6\frac{\pi}{6}6π
0≤θ≤π0 \leq \theta \leq \pi0≤θ≤π
arcsinx+arccosx=π2\arcsin x + \arccos x = \frac{\pi}{2}arcsinx+arccosx=2π
π4\frac{\pi}{4}4π
Only 1-to-1 functions have inverses
(−1,−π2)\left(-1, -\frac{\pi}{2}\right)(−1,−2π)
xxx
x≤−1x \leq -1x≤−1 or x≥1x \geq 1x≥1
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