MCQ
The domain of function $y=\sqrt{x+1}$ is :
- A$(-1,0)$
- B$(1,0)$
- C$(1, \infty)$
- ✓$[-1, \infty]$
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If A and B are coefficient of xn in the expansions of (1 + x)2n and (1 + x)2n – 1 respectively, then $\frac{\text{A}}{\text{B}}$ equals:
$1.$
$2.$
$\frac{1}{2}.$
$\frac{1}{\text{n}}.$
Hint:
$\frac{\text{A}}{\text{B}}=\frac{^{2\text{n}}\text{C}_\text{n}}{^{2\text{n}-1}\text{C}_\text{n}}=2$If the point (5, 2) bisects the intercept of a line between the axes, then its equation is:
The number of possible outcomes when a coin is tossed 6 times is.