MCQ
Let A = {a, b}, B = {a, b, c}. What is $\text{A }\cup\text{ B }?$
- A{a, b}
- B{a, c}
- C{a, b, c}
- D{b, c}
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A line cutting off intercept -3 from the y-axis and the tengent at angle to the xaxis is $\frac{3}{5}$, its equation is:
What is the slope of a line which is parallel to y-axis?
The two successive terms in the expansion of (1 + x)24 whose coefficients are in the ratio 1 : 4 are:
$[\text{Hint}:\frac{^{24}\text{C}_\text{r}}{^{24}\text{C}_{\text{r}+1}}=\frac{1}{4}\ \frac{\text{r}+1}{24-\text{r}}\ \frac{1}{4}\Rightarrow4\text{r}+4=24-4\Rightarrow\text{r}=4]$