Trắc nghiệm Phương trình lượng giác cơ bản lớp 11 (có đáp án)

$x=-\frac{\pi }{2}+k\pi \left(k\in \mathbb{Z}\right)$.

$x=-\frac{\pi }{2}+k2\pi \left(k\in \mathbb{Z}\right)$.

$x=k\pi \left(k\in \mathbb{Z}\right)$.

$x=\frac{3\pi }{2}+k\pi \left(k\in \mathbb{Z}\right)$.

$x=k\pi \left(k\in \mathbb{Z}\right)$.

$x=\frac{\pi }{2}+k2\pi \left(k\in \mathbb{Z}\right)$.

$x=k2\pi \left(k\in \mathbb{Z}\right)$.

$x=\frac{\pi }{2}+k\pi \left(k\in \mathbb{Z}\right)$.

$m\le 1$.

$m\ge -1$.

$-1\le m\le 1$.

$m\le -1$.

$x=\frac{\pi }{3}+k\pi \left(k\in \mathbb{Z}\right)$.

$x=\frac{\pi }{2}+k2\pi \left(k\in \mathbb{Z}\right)$.

$x=-\frac{\pi }{6}+k\pi \left(k\in \mathbb{Z}\right)$.

$x=\frac{\pi }{2}+k\pi \left(k\in \mathbb{Z}\right)$.

$S=\left\{k2\text{π};\frac{\text{π}}{3}+k2\text{π}\left|k\in \mathbb{Z}\right.\right\}$.

$S=\left\{k2\text{π};\frac{\text{π}}{3}+\frac{k2\text{π}}{3}\left|k\in \mathbb{Z}\right.\right\}$.

$S=\left\{k2\text{π};-\frac{\text{π}}{3}+k2\text{π}\left|k\in \mathbb{Z}\right.\right\}$.

$S=\left\{k2\text{π};\text{π}+k2\text{π}\left|k\in \mathbb{Z}\right.\right\}$.

$\left[\begin{array}{l}x=\frac{\pi }{6}+\frac{k\pi }{3}\\ x=\frac{\pi }{2}+k2\pi \end{array}\right.\left(k\in \mathbb{Z}\right)$.

$\left[\begin{array}{l}x=\frac{\pi }{6}+\frac{k\pi }{3}\\ x=\frac{\pi }{3}+k2\pi \end{array}\right.\left(k\in \mathbb{Z}\right)$.

$\left[\begin{array}{l}x=\frac{\pi }{6}+k2\pi \\ x=\frac{\pi }{2}+k2\pi \end{array}\right.\left(k\in \mathbb{Z}\right)$.

$\left[\begin{array}{l}x=\frac{\pi }{6}+\frac{k2\pi }{3}\\ x=\frac{\pi }{2}+k2\pi \end{array}\right.\left(k\in \mathbb{Z}\right)$.

$x=\frac{\pi }{3}+k\frac{\pi }{2}\left(k\in \mathbb{Z}\right)$.

$x=\frac{\pi }{3}+k\pi \left(k\in \mathbb{Z}\right)$.

$x=\frac{\pi }{6}+k\frac{\pi }{2}\left(k\in \mathbb{Z}\right)$.

$x=\frac{\pi }{6}+k\pi \left(k\in \mathbb{Z}\right)$.

$x=\frac{\pi }{6}+k\pi \left(k\in \mathbb{Z}\right)$.

$x=\frac{\pi }{3}+k\pi \left(k\in \mathbb{Z}\right)$.

$x=\frac{\pi }{3}+k2\pi \left(k\in \mathbb{Z}\right)$.

Vô nghiệm.

$m\in \left(-\infty ;-1\right)\cup \left(1;+\infty \right)$.

$m\in \left(1;+\infty \right)$.

$m\in \left[-1;1\right]$.

$m\in \left(-\infty ;-1\right)$.

0.

$\pi$.

$2\pi$.

$3\pi$.

4.

1.

2.

3.

$-1<m\le \frac{5}{2}$.

$0<m\le \frac{5}{2}$.

$0\le m\le \frac{11}{2}$.

$-1<m\le 6$ .