MCQ
The domain of the function $\text{f}(\text{x})=\frac{\text{x}}{(1+\text{x}^2)}$ is:
- AR - {1}
- BR - {-1}
- CR
- DNone of these
Solution:
Given, function $\text{f}(\text{x})=\frac{\text{x}}{(1+\text{x}^2)}$
Since f(x) is defined for all real values of x
So, domain(f) = R.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
The equation of a locus is y2 + 2ax + 2by + c = 0. Then:
For all n ∈ N, 3 × 52n+1 + 23n+1 is divisible by:
Seven white balls and three black balls are randomly placed in a row. The probability that no two black balls are placed adjacently equals:
In a town of 840 persons, 450 persons read Hindi, 300 read English and 200 read both. Then the number of persons who read neither is,