MCQ
$\frac{1-\cos 2 x+\sin x}{\sin 2 x+\cos x}=?$
- Acosec x
- Bsec x
- Ccot x
- Dtan x
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Four persons are selected at random out of 3 men, 2 women and 4 children. The probability that there are exactly 2 children in the selection is:
The domain and range of real function f defined by $\text{f(x)}=\sqrt{\text{x}-1}$ is given by.
Domain $= [1, \infty),$ Range $= [0, \infty)$
Domain $= [1, \infty),$ Range $= [0, \infty)$
Domain $= [1, \infty),$ Range $= [0, \infty)$
Domain $= [1, \infty),$ Range $= [0, \infty)$