MCQ
The point (-2, -3, -4) lies in the:
- AFirst octant
- BSeventh octant
- CSecond octant
- DEight octant
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If
$\tan\theta=3$ and $\theta$ lies in third quadrant, then the value of $\sin\theta$ is:If
$\tan\alpha=\frac{\text{m}}{\text{m}+1},\tan\beta=\frac{1}{2\text{m}+1},$ then $\alpha+\beta$ is equal to:$\frac{\pi}{2}$
$\frac{\pi}{3}$
$\frac{\pi}{6}$
$\frac{\pi}{4}$